GB2118193A - Polycarbonate-based thermoplastic polymer blends - Google Patents
Polycarbonate-based thermoplastic polymer blends Download PDFInfo
- Publication number
- GB2118193A GB2118193A GB08306970A GB8306970A GB2118193A GB 2118193 A GB2118193 A GB 2118193A GB 08306970 A GB08306970 A GB 08306970A GB 8306970 A GB8306970 A GB 8306970A GB 2118193 A GB2118193 A GB 2118193A
- Authority
- GB
- United Kingdom
- Prior art keywords
- polycarbonate
- thermoplastic polymer
- polymer blend
- polymer blends
- component
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 36
- 229920001169 thermoplastic Polymers 0.000 title claims abstract description 12
- 239000004417 polycarbonate Substances 0.000 title abstract description 27
- 229920000515 polycarbonate Polymers 0.000 title abstract description 16
- 229920001577 copolymer Polymers 0.000 claims description 7
- 229920000098 polyolefin Polymers 0.000 claims description 6
- 229920000402 bisphenol A polycarbonate polymer Polymers 0.000 claims description 3
- 239000003607 modifier Substances 0.000 claims description 3
- 229920000089 Cyclic olefin copolymer Polymers 0.000 claims description 2
- 229920001283 Polyalkylene terephthalate Polymers 0.000 claims description 2
- 238000010521 absorption reaction Methods 0.000 claims description 2
- 125000004432 carbon atom Chemical group C* 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 abstract description 4
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 abstract description 4
- 150000001336 alkenes Chemical class 0.000 abstract description 4
- 229920001971 elastomer Polymers 0.000 abstract description 3
- 239000000806 elastomer Substances 0.000 abstract description 3
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 abstract description 3
- 125000003118 aryl group Chemical group 0.000 abstract description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 abstract description 2
- 239000002904 solvent Substances 0.000 abstract description 2
- 238000009833 condensation Methods 0.000 abstract 1
- 230000005494 condensation Effects 0.000 abstract 1
- 238000005452 bending Methods 0.000 description 11
- 230000014759 maintenance of location Effects 0.000 description 11
- 238000007654 immersion Methods 0.000 description 10
- 229920001707 polybutylene terephthalate Polymers 0.000 description 8
- 229920000139 polyethylene terephthalate Polymers 0.000 description 8
- 239000005020 polyethylene terephthalate Substances 0.000 description 8
- 229920002943 EPDM rubber Polymers 0.000 description 7
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 7
- 239000004698 Polyethylene Substances 0.000 description 5
- 239000004743 Polypropylene Substances 0.000 description 5
- -1 polyethylene Polymers 0.000 description 5
- 239000005038 ethylene vinyl acetate Substances 0.000 description 4
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 4
- 229920000728 polyester Polymers 0.000 description 4
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 229920002959 polymer blend Polymers 0.000 description 3
- 239000000835 fiber Substances 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920001897 terpolymer Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- NHTMVDHEPJAVLT-UHFFFAOYSA-N Isooctane Chemical compound CC(C)CC(C)(C)C NHTMVDHEPJAVLT-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 229920001400 block copolymer Polymers 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- JVSWJIKNEAIKJW-UHFFFAOYSA-N dimethyl-hexane Natural products CCCCCC(C)C JVSWJIKNEAIKJW-UHFFFAOYSA-N 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 238000009863 impact test Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Thermoplastic polymer blends are prepared by mixing together an aromatic polycarbonate, one or more polyterephthalates derived from the condensation of terephthalic acid with a glycol of formula HO-(CH2)n-OH where n is from 2 to 10, and an olefin elastomer. The materials thus obtained have a high impact strength even at low temperature, a good solvent resistance, and a better processability than polycarbonate.
Description
SPECIFICATION
Polycarbonate-based thermoplastic polymer blends
Polycarbonate is a resin known to possess exceptional mechanical characteristics, particularly in
terms of impact strength, but it has certain defects which prevent its use in many large-consumption
applications, the main defects being a substantial brittling beyond a certain critical thickness, a very low
resistance to many organic solvents, and a poor impact strength at low temperature.
These defects have greatly limited the use of polycarbonate in one field, namely the automobile
field, which requires materials of outstanding mechanical properties and of excellent resistance to those
agents (petrol, lubricants, detergents, etc.) which habitually or accidentally come into contact with the
polycarbonate during its operational iife.
The prior art describes examples of blends prepared by mixing a polycarbonate with a polyester (AU-55998, US-41 88314, US-3494885), or by mixing together a polycarbonate, a polyolefin and
a third component such as an acrylic polymer (US-4245058), a hydrogenated block copolymer (US-41 22131), or an epoxidisable polydiene (G8-1 149695). The prior art also describes a
thermoplastic polymer blend (GB1007724) comprising at least 50% by weight of polycarbonate and
not more than 50% of an olefin polymer which can be partially substituted by a polyester resin, such
that the weight ratio of the olefin polymer to the polyester is always greater than unity.However,
because of the substantial plasticising effect which polyolefins have on polycarbonate, this blend has a
rather low load distortion temperature, this being a limiting characteristic for many applications,
including the automobile field.
We have now surprisingly found, in accordance with the present invention, that it is possible to
prepare materials with improved thermal properties by suitably mixing together an aromatic
polycarbonate such as bisphenol A polycarbonate, one or more thermoplastic polyesters prepared by
condensing terephthalic acid with a glycol such as one of general formula HO(CH2)nOH wherein n is
from 2 to 10, and an olefin elastomer in such quantities that the weight ratio of the olefin elastomer to
the thermoplastic polyester is less than or equal to 1.
Although the materials obtained have an impact strength which is very close to that of
polycarbonate, compared with the latter they have an excellent solvent resistance, a low sensitivity with
respect to thickness, and an improved impact strength at low temperature, and are easier to mould.
These polymer blends and the products obtained from them demonstrate physical, chemical and
electrical characteristics which overall are better than those of polycarbonate when used either as such
or in mixtures as described in the aforesaid patents.
The present invention includes a thermoplastic polymer blend, and a material obtained from it,
comprising at least one compound chosen from the following classes: (a) a bisphenol A polycarbonate;
(b) one or more polyalkyleneterephthalates whose alkylene radical has from 2 to 10 carbon atoms; and
(c) a modifier which modifies the impact energy absorption mechanism, which is selected from (i) a C2
or C3 polyolefin, (ii) a C2-C3 olefin copolymer (preferably of ethylene-propylene rubber type or of
ethylene-propylene-diene monomer terpolymer type), (iii) a mixture of (i) and (ii), (iv) a mixture of (i) and
a copolymer of polyethylenevinylacetate type, and (v) a mixture of (i) and (ii) with a copolymer of
polyethylenevinylacetate type.
The quantity of component (a) is preferably from 5 to 95% by weight, the quantity of components
(b) and (c) is preferably from 5 to 95% by weight, and the weight ratio of component (c) to component
(b) is less than or equal to 1.
The polycarbonate used is preferably one having an intrinsic viscosity in methylene chloride at
200C of from 0.46 to 1.2 dl/g,
The modifier used can be either a simple polyethylene or polypropylene, or a copolymer of two or
more olefins such as an ethylene-propylene copolymer or an ethylene-propylene-diene copolymer, or a
mixture of these with a copolymer of polyethylenevinylacetate type.
Although not essential, best results are obtained by carrying out one or more premixing operations
on the components, then reducing the resulting blend to granules, and then moulding the blend. The
apparatus used for mixing is of no special importance. Thus single screw extruders, double screw
extruders, Banbury mixers and all machinery normally used in industrial practice are suitable for this
purpose.
The thermoplastic polymer blend of the present invention can be-in various forms such as in the form of powder, granules, spheres, discoids or other forms, prepared for example either by extrusion or
by injection.
The blend can contain various additives such as stabilisers, dyes, flame retarders, lubricants, and fillers (e.g. glass fibre, carbon fibre, asbestos fibre and glass wool).
The invention will now be illustrated by the following Examples.
EXAMPLES 1-77 Polymer blends 1 to 77, whose compositions are given in the following Tables 1 to 10, were prepared. The component granules of each blend were dried and mixed, and extruded in a single screw extruder at a temperature of 2750 C. The polymer blend obtained in this manner was then granulated and injection-moulded at a temperature of from 260 to 2800C, depending upon the composition, the mould temperature being 600 C. The following tests were carried out on the products obtained;
(a) Izod notched bar impact test (ASTM D 256-61); (b) Vicat softening point at 5 kg (ASTM D 1525-72); (c) Modulus of elasticity in bending (ASTM D 790-70);; (d) Stress cracking test, i.e. at test wherein tension is applied in accordance with ASTM D 638 to samples which had been previously subjected to 0.7% tensile deformation and immersed for 2 hours in a1 :1 (volumetric) mixture of toluene and isooctane to which 15% of methyl alcohol had been added, the percentage retention of the ultimate tensile stress of the non-immersed sample then being measured.
The results obtained are given in the following Tables 1 to 10.
TABLE 1
Composition 1 2 3 4 5 6 7 8 9
PC 100 90 75 60 60 60 50 50 50
PET - 5 15 35 30 20 45 40 25
EPR - 5 10 5 10 20 5 10 25
Degrees Vicat 155 147 135 137 123 105 125 112 94 5 kg ( C)
IZOD Impact, Notched 90 59 63 67 78 81 51 54 62 (kg cm/cm)
Mod. Elasticity 23000 21700 19700 22300 20000 15300 22800 20300 13300
In Bending (kg/cm)
% Ult. Tensile Stress - 63 78 92 94 91 90 91 89
Retention After 120 min.
Immersion TABLE 2
Composition 10 11 12 13 14 15 16 17 18
PC 100 75 75 60 60 60 50 50 50
PET - 20 15 35 30 20 45 40 25
EPDM - 5 10 5 10 20 5 10 25
Degrees Vicat 155 146 133 133 121 105 121 109 90 5 kg ( C)
IZOD Impact, Notched 90 70 75 82 91 98 58 63 75 (kg cm/cm)
Mod. Elasticity 23000 21800 19500 22500 20100 15100 23000 20500 13200
In Bending (kg/cm)
% Ult. Tensile Stress - 65 79 90 96 93 93 94 87
Retention After 120 min.
Immersion TABLE 3
Composition 19 20 21 22 23 24 25 26 27 28 29 30
PC 100 75 75 60 60 60 50 50 50 40 40 40
PBT - 20 25 35 30 20 45 40 25 55 50 30
EPDM - 5 10 5 10 20 5 10 25 10 10 30
Degrees Vicat 155 135 121 133 124 115 131 122 108 138 127 107 5 kg( C)
IZOD Impact, Notched 90 58 72 29 87 95 76 82 91 47 53 62 (kg cm/cm)
Mod. Elasticity 23000 22900 20200 24000 21300 15700 24300 21700 13600 24200 21800 11300
In Bending (kg/cm)
% Ulit. Tensile Stress - 75 78 80 83 77 82 84 79 87 90 88
Retention After 120 min.
Immersion TABLE 4
Composition 31 32 33 34 35 36 37 38 39 40 41 42
PC 100 75 75 60 60 60 50 50 50 40 40 40
PBT - 20 15 35 30 20 45 40 25 55 50 30
EPR - 5 10 5 10 20 5 10 25 5 10 30
Degrees Vicat 155 136 123 134 126 114 135 121 135 135 127 109 5 kg( C)
IZOD Impact, Notched 90 52 65 73 78 81 71 79 84 40 45 61 (kg cm/cm)
Mod. Elasticity 23000 22700 20100 24100 21300 16000 23900 21500 13700 23100 21500 11700
In Bending (kg/cm)
% Ult. Tensile Stress - 73 77 81 82 79 80 86 82 85 88 84
Retention After 120 min.
Immersion TABLE 5
Composition 43 44 45 46
PC 100 75 60 50
PET - 20 35 40
PP - 5 5 10 DegreesVicat 155 143 140 115
5 kg( C)
IZOD Impact, Notched 90 68 63 51
(kg cm/cm)
Mod. Elasticity 23000 22100 21500 20600
In Bending (kg/cm2) % Ult. Tensile Stress - 75 85 89
Retention After 120 min.
Immersion
TABLE 6
Composition 47 48 49
PC 100 60 50
PET - 35 40
PE - 5 10
DegreesVicat 155 141 114
5 kg( C)
IZOD Impact, Notched 90 .67 53
(kg cm/cm)
Mod. Elasticity 23000 22000 20200
In Bending (kg/cm2) % Ult. Tensile Stress - 87 91
Retention After 120 min.
Immersion
TABLE 7
Composition 50 51 52
PC 100 60 50
PBT - 35 40
PP - 5 10 DegreesVicat 155 138 124
5 kg( C)
IZOD Impact, Notched 90 72 70
(kg cm/cm)
Mod. Elasticity 23000 23700 21900
In Bending (kg/cm2) % Ult. Tensile Stress - 84 85
Retention After 120 min.
Immersion
TABLE 8
Composition 53 54 55
PC 100 60 50
PBT - 35 40
PE - 5 10
Degrees Vicat 155 135 123
5 kg( C)
IZOD Impact, Notched 90 76 71
(kg cm/cm)
Mod. Elasticity 23000 23500 21500
In Bending (kg/cm2) % Ult. Tensile Stress - 87 89
Retention After 120 min.
Immersion TABLE 9
Composition 56 57 58 59 60 61 62 63 64 65 66
PC 80 50 80 50 80 50 80 50 50 50 60
PBT 10 40 10 10 40 40
PET 10 40 10 40 30
EPDM 5 5 5 5 5 5 5 5
EPR
PE 5 5 5 5 5 5
PP 5 5 5 5 5
EVA 5 5 5
Degrees Vicat 135 130 132 118 133 131 130 120 132 130 133 5 kg( C)
IZOD Impact, Notched 63 71 54 59 60 65 53 58 62 58 66 (kg cm/cm)
Mod. Elasticity 21500 20100 21200 20300 22000 21300 21400 20700 20500 20700 19800
In Bending (kg/cm)
% Ult. Tensile Stress 70 83 76 90 68 81 75 93 86 83 88
Retention After 120 min.
Immersion TABLE 10
Composition 67 68 69 70 71 72 73 74 75 76 77
PC 60 50 50 50 60 60 60 50 50 50 60
PBT 40 40 40 40 40
PET 30 30 30 30 30 30
EPDM 2.5 2.5 2.5 2.5
EPR 5 5 5 5 5 5 2.5 2.5 2.5 2.5
PE 5 5 2.5 2.5
PP 5 5 5 2.5 2.5
EVA 5 5 5 2.5 2.5 2.5 2.5
Degrees Vicat 131 128 129 126 126 127 124 130 129 127 128 5 kg( C)
IZOD Impact, Notched 57 67 65 56 66 61 57 69 66 71 73 (kg cm/cm)
Mod. Elasticity 20100 20400 20600 19900 20200 20300 19600 20700 20600 20200 20400
In Bending (kg/cm)
% Ult. Tensile Stress 91 83 80 83 93 91 89 86 84 93 93
Retention After 120 min.
Immersion ABBREVIATIONS
PC polycarbonate
PET polyethyleneterephthalate
EPR ethylene-propylene rubber
EPDM ethylene-propylene-diene monomer terpolymer PBT polybutyleneterephthalate
PP polypropylene
PE polyethylene
EVA ethylene-vinylacetate copolymer
Claims (4)
1. A thermoplastic polymer blend comprising (a) a bisphenol A polycarbonate; (b) one or more polyalkyleneterephthalates whose alkylene radical contains from 2 to 10 carbon atoms; (c) an impact energy absorption modifier selected from (i) a C2 or C3 polyolefin, (ii) a C2-C3 olefin copolymer, (iii) a mixture of (i) and (ii), and (iv) a mixture of (i) and/or (ii) with a copolymer of polyethylenevinylacetate type; the weight ratio of component (c) to component (b) being less than or equal to 1.
2. A thermoplastic polymer blend as claimed in claim 1, wherein the quantity of component (a) present is from 5 to 95% by weight.
3. A thermoplastic polymer blend as claimed in claim 1 or 2, wherein the quantity of components (b) and (c) present is from 5 to 95% by weight.
4. A thermoplastic polymer blend, substantially as described in any of the foregoing Examples 2 to 9,11 to 18,20to30,32to42,44to46,48and49,51 and 52, and 54to 77.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT20406/82A IT1199982B (en) | 1982-03-26 | 1982-03-26 | POLYCARBONATE-BASED THERMOPLASTIC POLYMERIC ALLOY |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8306970D0 GB8306970D0 (en) | 1983-04-20 |
| GB2118193A true GB2118193A (en) | 1983-10-26 |
| GB2118193B GB2118193B (en) | 1986-01-15 |
Family
ID=11166445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08306970A Expired GB2118193B (en) | 1982-03-26 | 1983-03-14 | Polycarbonate-based thermoplastic polymer blends |
Country Status (16)
| Country | Link |
|---|---|
| JP (1) | JPS58176241A (en) |
| AT (1) | AT381113B (en) |
| BE (1) | BE896271A (en) |
| CA (1) | CA1196136A (en) |
| CH (1) | CH653045A5 (en) |
| DE (1) | DE3310754A1 (en) |
| DK (1) | DK132383A (en) |
| ES (1) | ES8405051A1 (en) |
| FR (1) | FR2523990B1 (en) |
| GB (1) | GB2118193B (en) |
| IE (1) | IE54381B1 (en) |
| IT (1) | IT1199982B (en) |
| NL (1) | NL185672C (en) |
| NO (1) | NO166044C (en) |
| SE (1) | SE461736B (en) |
| ZA (1) | ZA831660B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0115015A1 (en) * | 1983-01-03 | 1984-08-08 | General Electric Company | Linear low density polyethylene impact modifier for thermoplastic polyesters |
| EP0166889A1 (en) * | 1984-05-04 | 1986-01-08 | Bayer Ag | Polycarbonate and polyalkylene terephthalate moulding materials |
| EP0187992A1 (en) * | 1985-01-02 | 1986-07-23 | General Electric Company | Polycarbonate composition |
| US4764556A (en) * | 1986-05-21 | 1988-08-16 | Basf Aktiengesellschaft | Thermoplastic molding materials of polyester and polycarbonate |
| US4791158A (en) * | 1986-08-09 | 1988-12-13 | Basf Aktiengesellschaft | Thermoplastic molding materials containing a polyester and a polycarbonate |
| EP0272857A3 (en) * | 1986-12-23 | 1989-10-18 | Advanced Elastomer Systems, L.P. | Polycarbonate compositions |
| EP0308179A3 (en) * | 1987-09-17 | 1990-05-09 | Tonen Sekiyukagaku K.K. | Thermoplastic resin composition |
| EP0369734A3 (en) * | 1988-11-14 | 1992-01-22 | Amoco Corporation | Improving the thermal properties of a polyalkyleneterephthalate without significant loss of physical and low temperature properties |
| US5302429A (en) * | 1989-08-04 | 1994-04-12 | Rohm And Haas Company | Thermoplastic polymer compositions containing high molecular weight poly(vinyl aromatic) melt-rheology modifiers |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4587295A (en) * | 1985-01-02 | 1986-05-06 | General Electric Company | Polycarbonate composition |
| US4895899A (en) * | 1987-12-23 | 1990-01-23 | Uniroyal Chemical Company, Inc. | Impact resistant polyethylene terephthalate/polycarbonate/polyethylene graft copolymer blends |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1007724A (en) * | 1962-07-04 | 1965-10-22 | Teijin Ltd | Novel moulding material and the moulded articles obtained therefrom |
| GB1375670A (en) * | 1971-06-21 | 1974-11-27 | ||
| GB1375669A (en) * | 1971-06-21 | 1974-11-27 | ||
| GB1558874A (en) * | 1975-12-08 | 1980-01-09 | Gen Electric | Foamed thermoplastic compositions of a linear polyester and an ionically crosslinked copolymer |
| GB1565959A (en) * | 1975-12-08 | 1980-04-23 | Gen Electric | Thermoplastic compositions of poly(1,4-butylone)terphthalate resin and ionically crosslinked copolymers |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1368369A (en) * | 1962-07-04 | 1964-07-31 | Teijin Ltd | New polymeric molding composition and molded articles obtained therefrom |
| JPS5726303B2 (en) * | 1974-04-04 | 1982-06-03 | ||
| JPS5139749A (en) * | 1974-10-02 | 1976-04-02 | Mitsubishi Gas Chemical Co | JUGOTAISOSE IBUTSU |
| JPS5813588B2 (en) * | 1975-02-04 | 1983-03-14 | 帝人株式会社 | thermoplastic resin composition |
| US4226950A (en) * | 1978-07-06 | 1980-10-07 | General Electric Company | Plasticized, impact modified polycarbonates |
| JPS5726303A (en) * | 1980-07-23 | 1982-02-12 | Mitsubishi Heavy Ind Ltd | Fire furnace wall |
| DE3118697A1 (en) * | 1981-05-12 | 1982-12-02 | Bayer Ag, 5090 Leverkusen | "THERMOPLASTIC MOLDS BASED ON POLYCARBONATE, POLYALKYLENE TEREPHTHALATE AND, IF NECESSARY, ONE OR MORE POLYMERISATES" |
-
1982
- 1982-03-26 IT IT20406/82A patent/IT1199982B/en active
-
1983
- 1983-03-10 ZA ZA831660A patent/ZA831660B/en unknown
- 1983-03-14 GB GB08306970A patent/GB2118193B/en not_active Expired
- 1983-03-17 CH CH1483/83A patent/CH653045A5/en not_active IP Right Cessation
- 1983-03-18 SE SE8301493A patent/SE461736B/en not_active IP Right Cessation
- 1983-03-23 DK DK132383A patent/DK132383A/en not_active Application Discontinuation
- 1983-03-23 NO NO831023A patent/NO166044C/en unknown
- 1983-03-24 FR FR8304876A patent/FR2523990B1/en not_active Expired
- 1983-03-24 DE DE3310754A patent/DE3310754A1/en not_active Ceased
- 1983-03-25 BE BE0/210401A patent/BE896271A/en not_active IP Right Cessation
- 1983-03-25 CA CA000424517A patent/CA1196136A/en not_active Expired
- 1983-03-25 IE IE675/83A patent/IE54381B1/en not_active IP Right Cessation
- 1983-03-25 NL NLAANVRAGE8301055,A patent/NL185672C/en not_active IP Right Cessation
- 1983-03-25 AT AT0106483A patent/AT381113B/en not_active IP Right Cessation
- 1983-03-25 ES ES521356A patent/ES8405051A1/en not_active Expired
- 1983-03-25 JP JP58050304A patent/JPS58176241A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1007724A (en) * | 1962-07-04 | 1965-10-22 | Teijin Ltd | Novel moulding material and the moulded articles obtained therefrom |
| GB1375670A (en) * | 1971-06-21 | 1974-11-27 | ||
| GB1375669A (en) * | 1971-06-21 | 1974-11-27 | ||
| GB1558874A (en) * | 1975-12-08 | 1980-01-09 | Gen Electric | Foamed thermoplastic compositions of a linear polyester and an ionically crosslinked copolymer |
| GB1565959A (en) * | 1975-12-08 | 1980-04-23 | Gen Electric | Thermoplastic compositions of poly(1,4-butylone)terphthalate resin and ionically crosslinked copolymers |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0115015A1 (en) * | 1983-01-03 | 1984-08-08 | General Electric Company | Linear low density polyethylene impact modifier for thermoplastic polyesters |
| EP0166889A1 (en) * | 1984-05-04 | 1986-01-08 | Bayer Ag | Polycarbonate and polyalkylene terephthalate moulding materials |
| EP0187992A1 (en) * | 1985-01-02 | 1986-07-23 | General Electric Company | Polycarbonate composition |
| US4764556A (en) * | 1986-05-21 | 1988-08-16 | Basf Aktiengesellschaft | Thermoplastic molding materials of polyester and polycarbonate |
| US4791158A (en) * | 1986-08-09 | 1988-12-13 | Basf Aktiengesellschaft | Thermoplastic molding materials containing a polyester and a polycarbonate |
| EP0272857A3 (en) * | 1986-12-23 | 1989-10-18 | Advanced Elastomer Systems, L.P. | Polycarbonate compositions |
| US4883840A (en) * | 1986-12-23 | 1989-11-28 | Exxon Chemical Patents Inc. | Elastomer modified polycarbonate compositions of improved impact strength |
| EP0308179A3 (en) * | 1987-09-17 | 1990-05-09 | Tonen Sekiyukagaku K.K. | Thermoplastic resin composition |
| EP0545902A3 (en) * | 1987-09-17 | 1993-08-18 | Tonen Sekiyukagaku K.K. | Thermoplastic resin composition |
| EP0369734A3 (en) * | 1988-11-14 | 1992-01-22 | Amoco Corporation | Improving the thermal properties of a polyalkyleneterephthalate without significant loss of physical and low temperature properties |
| US5302429A (en) * | 1989-08-04 | 1994-04-12 | Rohm And Haas Company | Thermoplastic polymer compositions containing high molecular weight poly(vinyl aromatic) melt-rheology modifiers |
Also Published As
| Publication number | Publication date |
|---|---|
| NL8301055A (en) | 1983-10-17 |
| JPS58176241A (en) | 1983-10-15 |
| NL185672C (en) | 1990-06-18 |
| SE8301493L (en) | 1983-09-27 |
| IT8220406A0 (en) | 1982-03-26 |
| IE830675L (en) | 1983-09-26 |
| DK132383A (en) | 1983-09-27 |
| GB2118193B (en) | 1986-01-15 |
| AT381113B (en) | 1986-08-25 |
| IE54381B1 (en) | 1989-09-13 |
| NO166044B (en) | 1991-02-11 |
| CA1196136A (en) | 1985-10-29 |
| NO831023L (en) | 1983-09-27 |
| GB8306970D0 (en) | 1983-04-20 |
| DE3310754A1 (en) | 1983-09-29 |
| NL185672B (en) | 1990-01-16 |
| ES521356A0 (en) | 1984-05-16 |
| BE896271A (en) | 1983-09-26 |
| CH653045A5 (en) | 1985-12-13 |
| ZA831660B (en) | 1983-12-28 |
| SE461736B (en) | 1990-03-19 |
| DK132383D0 (en) | 1983-03-23 |
| ES8405051A1 (en) | 1984-05-16 |
| FR2523990B1 (en) | 1986-10-10 |
| IT1199982B (en) | 1989-01-05 |
| FR2523990A1 (en) | 1983-09-30 |
| NO166044C (en) | 1991-05-22 |
| SE8301493D0 (en) | 1983-03-18 |
| ATA106483A (en) | 1986-01-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19950314 |