GB1155904A - Process for the preparation of foamable beads - Google Patents
Process for the preparation of foamable beadsInfo
- Publication number
- GB1155904A GB1155904A GB2323267A GB2323267A GB1155904A GB 1155904 A GB1155904 A GB 1155904A GB 2323267 A GB2323267 A GB 2323267A GB 2323267 A GB2323267 A GB 2323267A GB 1155904 A GB1155904 A GB 1155904A
- Authority
- GB
- United Kingdom
- Prior art keywords
- suspension
- beads
- styrene
- impregnated
- polymer
- 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.)
- Expired
Links
- 239000011324 bead Substances 0.000 title abstract 8
- 239000000725 suspension Substances 0.000 abstract 8
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 abstract 6
- 229920000642 polymer Polymers 0.000 abstract 5
- 239000004604 Blowing Agent Substances 0.000 abstract 3
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 abstract 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 abstract 2
- ZSWFCLXCOIISFI-UHFFFAOYSA-N cyclopentadiene Chemical compound C1C=CC=C1 ZSWFCLXCOIISFI-UHFFFAOYSA-N 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- 239000004215 Carbon black (E152) Substances 0.000 abstract 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 abstract 1
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 abstract 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 150000007513 acids Chemical class 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 125000003118 aryl group Chemical group 0.000 abstract 1
- 238000009835 boiling Methods 0.000 abstract 1
- 239000001273 butane Substances 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 229920001577 copolymer Polymers 0.000 abstract 1
- 239000003814 drug Substances 0.000 abstract 1
- 229940079593 drug Drugs 0.000 abstract 1
- 229920001519 homopolymer Polymers 0.000 abstract 1
- 229930195733 hydrocarbon Natural products 0.000 abstract 1
- 150000002430 hydrocarbons Chemical class 0.000 abstract 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 abstract 1
- 239000006194 liquid suspension Substances 0.000 abstract 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 abstract 1
- 239000003208 petroleum Substances 0.000 abstract 1
- 229940041735 rexall Drugs 0.000 abstract 1
- 159000000000 sodium salts Chemical class 0.000 abstract 1
- 229920003048 styrene butadiene rubber Polymers 0.000 abstract 1
- 239000000375 suspending agent Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/16—Making expandable particles
- C08J9/18—Making expandable particles by impregnating polymer particles with the blowing agent
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
1,155,904. Foamable styrene-polymer beads. REXALL DRUG & CHEMICAL CO. 18 May, 1967 [19 May, 1966; 23 May, 1966], No. 23232/67. Headings C3C and C3P. Foamable styrene polymer beads are made by (a) suspending the polymer beads in an aqueous solution containing an organic suspending agent, which comprises hydroxyethyl cellulose in combination with one or more sodium salts of condensed aryl sulphonic acids, (b) adding to the suspension a hydrocarbon blowing agent boiling between -10‹ C. and 100‹ C., (c) maintaining the suspension between 40‹ and 150‹ C. for 1 to 10 hours to produce beads impregnated with 1 to 20% by weight of the blowing agent, (d) cooling the suspension, (e) separating the impregnated beads from the suspension. Preferably, the suspension of beads is contained in a suspension zone and is heated to between 80‹ and 120‹ C. Pentane is added at a rate sufficient to vaporize it in a space above the liquid suspension phase and the suspension continuously agitated at 80‹ C. and 1-3À5 atmospheres to 120‹ C. and 1-9 atmospheres for 1-10 hours. The suspension is cooled to between 20‹ and 60‹ C. and the impregnated beads separated, washed and dried and finally recovered in a free-flowing form. The styrene polymer may be a homopolymer or copolymer or a blend of styrene polymer with a styrene-butadiene copolymer. Blowing agents include butane, petroleum ether, cyclohexane, cyclopentadiene or mixtures of these.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US55122166A | 1966-05-19 | 1966-05-19 | |
| US55195566A | 1966-05-23 | 1966-05-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1155904A true GB1155904A (en) | 1969-06-25 |
Family
ID=27069684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2323267A Expired GB1155904A (en) | 1966-05-19 | 1967-05-18 | Process for the preparation of foamable beads |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1155904A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3620683C1 (en) * | 1986-06-20 | 1987-07-02 | Basf Ag | Blowing agent-containing styrene polymers |
| CN111349022A (en) * | 2018-12-21 | 2020-06-30 | 江西世龙实业股份有限公司 | Preparation method of AC foaming agent with uniform and controllable particle size |
| CN112356373A (en) * | 2020-11-18 | 2021-02-12 | 广东奔迪新材料科技有限公司 | Continuous foaming method and continuous foaming device for polymer particles |
-
1967
- 1967-05-18 GB GB2323267A patent/GB1155904A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3620683C1 (en) * | 1986-06-20 | 1987-07-02 | Basf Ag | Blowing agent-containing styrene polymers |
| US4772441A (en) * | 1986-06-20 | 1988-09-20 | Basf Aktiengesellschaft | Styrene polymers containing blowing agents |
| CN111349022A (en) * | 2018-12-21 | 2020-06-30 | 江西世龙实业股份有限公司 | Preparation method of AC foaming agent with uniform and controllable particle size |
| CN112356373A (en) * | 2020-11-18 | 2021-02-12 | 广东奔迪新材料科技有限公司 | Continuous foaming method and continuous foaming device for polymer particles |
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