BR8705700A - Processo para reduzir a densidade de uma placa de espuma extrudada - Google Patents

Processo para reduzir a densidade de uma placa de espuma extrudada

Info

Publication number: BR8705700A
Authority: BR; Brazil
Prior art keywords: density; reduce; foam board; extruded foam; extruded
Prior art date: 1986-10-27

Application number

BR8705700A

Other languages

English (en)

Inventor

Chau V Vo

Georges Eschenlauer

Original Assignee

Dow Chemical Co

Priority date (The priority date 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 date listed.)

1986-10-27

Filing date

1987-10-23

Publication date

1988-05-31

1987-10-23 Application filed by Dow Chemical Co filed Critical Dow Chemical Co

1988-05-31 Publication of BR8705700A publication Critical patent/BR8705700A/pt

Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
- B29C67/20—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored
- 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
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
- C08J9/127—Mixtures of organic and inorganic blowing agents
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/08—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles using several expanding or moulding steps
- 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
- C08J9/22—After-treatment of expandable particles; Forming foamed products
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2025/00—Use of polymers of vinyl-aromatic compounds or derivatives thereof as moulding material
- 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
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
- C08J2203/142—Halogenated saturated hydrocarbons, e.g. H3C-CF3

Landscapes

Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Medicinal Chemistry (AREA)
Materials Engineering (AREA)
Health & Medical Sciences (AREA)
Chemical Kinetics & Catalysis (AREA)
Polymers & Plastics (AREA)
Organic Chemistry (AREA)
Inorganic Chemistry (AREA)
Mechanical Engineering (AREA)
Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Extrusion Moulding Of Plastics Or The Like (AREA)
Molding Of Porous Articles (AREA)

BR8705700A 1986-10-27 1987-10-23 Processo para reduzir a densidade de uma placa de espuma extrudada BR8705700A (pt)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR8614882A FR2605638B1 (fr)	1986-10-27	1986-10-27	Procede pour diminuer la densite d'un panneau extrude en materiau mousse de resine thermoplastique et dispositif pour sa mise en oeuvre

Publications (1)

Publication Number	Publication Date
BR8705700A true BR8705700A (pt)	1988-05-31

Family

ID=9340214

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BR8705700A BR8705700A (pt)	1986-10-27	1987-10-23	Processo para reduzir a densidade de uma placa de espuma extrudada

Country Status (10)

Country	Link
EP (1)	EP0268805B1 (pt)
JP (1)	JPH0815743B2 (pt)
KR (1)	KR910002478B1 (pt)
AU (1)	AU595388B2 (pt)
BR (1)	BR8705700A (pt)
CA (1)	CA1292347C (pt)
DE (1)	DE3762955D1 (pt)
ES (1)	ES2016321B3 (pt)
FR (1)	FR2605638B1 (pt)
GR (1)	GR3000522T3 (pt)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH0671756B2 (ja) *	1988-09-30	1994-09-14	積水化成品工業株式会社	スチレン系樹脂板状発泡体の製造方法
AU642962B2 (en) *	1990-02-16	1993-11-04	Sekisui Kaseihin Kogyo Kabushiki Kaisha	Process of producing thermoplastic polyester series resin foamed material
EP0513408B1 (en) *	1991-05-10	1997-12-29	Sekisui Kaseihin Kogyo Kabushiki Kaisha	Leather-like foamed thermoplastic polyester series resin sheet and production process thereof
CA2042340A1 (en) *	1991-05-10	1992-11-11	Motoshige Hayashi	Leather-like thermoplastic polyester series resin sheet and process for production of the same
JP2005239742A (ja) *	2004-02-13	2005-09-08	Jsp Corp	ポリスチレン系樹脂発泡板成形体、断熱材および装飾板

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3119147A (en) *	1961-08-21	1964-01-28	Koppers Co Inc	Apparatus for producing flexible styrene polymers
GB1051398A (pt) *	1965-01-12	1966-12-14
GB1073813A (en) *	1965-08-09	1967-06-28	Swedish Crucible Steel Company	Method and apparatus for rendering polystyrene sheet material flexible
US3381077A (en) *	1966-01-26	1968-04-30	Du Pont	Method for inflating closed cell foams
GB1151117A (en) *	1967-08-11	1969-05-07	Watchwell Ltd	Treatment of Polystyrene.
JPS5699635A (en) *	1980-01-14	1981-08-11	Sekisui Plastics Co Ltd	Preparation of styrene resin foam plate of large thickness

1986
- 1986-10-27 FR FR8614882A patent/FR2605638B1/fr not_active Expired
1987
- 1987-10-01 CA CA000548318A patent/CA1292347C/en not_active Expired - Lifetime
- 1987-10-15 DE DE8787115045T patent/DE3762955D1/de not_active Expired - Fee Related
- 1987-10-15 ES ES87115045T patent/ES2016321B3/es not_active Expired - Lifetime
- 1987-10-15 EP EP87115045A patent/EP0268805B1/en not_active Expired - Lifetime
- 1987-10-16 AU AU79835/87A patent/AU595388B2/en not_active Ceased
- 1987-10-23 BR BR8705700A patent/BR8705700A/pt not_active IP Right Cessation
- 1987-10-26 JP JP62268351A patent/JPH0815743B2/ja not_active Expired - Lifetime
- 1987-10-26 KR KR1019870011860A patent/KR910002478B1/ko not_active Expired
1990
- 1990-05-31 GR GR90400280T patent/GR3000522T3/el unknown

Also Published As

Publication number	Publication date
KR910002478B1 (ko)	1991-04-23
AU7983587A (en)	1988-04-28
AU595388B2 (en)	1990-03-29
FR2605638B1 (fr)	1989-09-08
JPH0815743B2 (ja)	1996-02-21
KR880004929A (ko)	1988-06-27
FR2605638A1 (fr)	1988-04-29
EP0268805A1 (en)	1988-06-01
EP0268805B1 (en)	1990-05-30
JPS63159034A (ja)	1988-07-01
ES2016321B3 (es)	1990-11-01
CA1292347C (en)	1991-11-26
GR3000522T3 (en)	1991-07-31
DE3762955D1 (de)	1990-07-05

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Legal Events

Date	Code	Title	Description
2008-07-29	B21A	Expiry acc. art. 78, item i of ipl- expiry of the term of protection	Free format text: PATENTE EXTINTA EM 23/10/2002