GB1300262A – Foamed thermoplastics
– Google Patents
GB1300262A – Foamed thermoplastics
– Google Patents
Foamed thermoplastics
Info
Publication number
GB1300262A
GB1300262A
GB22381/70A
GB2238170A
GB1300262A
GB 1300262 A
GB1300262 A
GB 1300262A
GB 22381/70 A
GB22381/70 A
GB 22381/70A
GB 2238170 A
GB2238170 A
GB 2238170A
GB 1300262 A
GB1300262 A
GB 1300262A
Authority
GB
United Kingdom
Prior art keywords
blowing agent
weight
mixture
polymer mixture
pressure
Prior art date
1970-05-08
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
Application number
GB22381/70A
Inventor
John Albert Rixon
Anthony Graham Marshall Last
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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.)
1970-05-08
Filing date
1970-05-08
Publication date
1972-12-20
1970-05-08
Application filed by Imperial Chemical Industries Ltd
filed
Critical
Imperial Chemical Industries Ltd
1970-05-08
Priority to GB22381/70A
priority
Critical
patent/GB1300262A/en
1971-04-30
Priority to ZA712792A
priority
patent/ZA712792B/en
1971-04-30
Priority to US00139273A
priority
patent/US3793239A/en
1971-05-04
Priority to CA112152A
priority
patent/CA919850A/en
1971-05-05
Priority to DK217671AA
priority
patent/DK127003B/en
1971-05-07
Priority to FR7116528A
priority
patent/FR2088432B1/fr
1971-05-07
Priority to ES390958A
priority
patent/ES390958A1/en
1971-05-07
Priority to SE7105962A
priority
patent/SE384217B/en
1971-05-07
Priority to DE19712122771
priority
patent/DE2122771A1/en
1971-05-07
Priority to NL7106285A
priority
patent/NL7106285A/xx
1971-05-10
Priority to BE766974A
priority
patent/BE766974A/en
1972-12-20
Publication of GB1300262A
publication
Critical
patent/GB1300262A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
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
C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
Y10S264/05—Use of one or more blowing agents together
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
Y10S264/13—Cell size and distribution control while molding a foam
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10S521/00—Synthetic resins or natural rubbers — part of the class 520 series
Y10S521/91—Plural blowing agents for producing nonpolyurethane cellular products
Abstract
1300262 Extruding foamed material IMPERIAL CHEMICAL INDUSTRIES Ltd 27 April 1971 [8 May 1970] 22381/70 Heading B5A [Also in Division C3] An extrusion process comprises injecting a blowing agent system into a molten mixture of a crystalline stereoregular poly α-olefin and 1 to 15% by weight, based on the weight of the mixture, of a thermoplastic polymer of higher melting point than the poly α-olefin, in a screw extruder to form a solution of the blowing agent system in the polymer mixture and extruding the solution from a region of elevated pressure and temperature in the extruder to a region of lower pressure, the blowing agent system comprising at least 10% by weight, based on the weight of the polymer mixture, of a first blowing agent which at the elevated temperature and the elevated pressure is a liquid which is completely miscible with, and inert to, the molten polymer mixture and which is gaseous at the elevated temperature at the lower pressure, and a second blowing agent, which is inert to the polymer mixture, has a solubility at the elevated temperature and pressure of 0À01 to 10% by weight in the mixture of the polymer mixture and the first blowing agent and which has a critical temperature below the elevated temperature. The two blowing agents may be injected into a zone in the extruder at lower pressure than that at a point upstream of this zone. The foams may be extruded in the form of a film (by collapsing the foamed solution, inflated by air, by means of nip rollers).
GB22381/70A
1970-05-08
1970-05-08
Foamed thermoplastics
Expired
GB1300262A
(en)
Priority Applications (11)
Application Number
Priority Date
Filing Date
Title
GB22381/70A
GB1300262A
(en)
1970-05-08
1970-05-08
Foamed thermoplastics
ZA712792A
ZA712792B
(en)
1970-05-08
1971-04-30
Foamed thermoplastics
US00139273A
US3793239A
(en)
1970-05-08
1971-04-30
Foamed thermoplastics
CA112152A
CA919850A
(en)
1970-05-08
1971-05-04
Foamed thermoplastics
DK217671AA
DK127003B
(en)
1970-05-08
1971-05-05
Process for the production of a foamed thermoplastic poly-α-olefin material.
FR7116528A
FR2088432B1
(en)
1970-05-08
1971-05-07
ES390958A
ES390958A1
(en)
1970-05-08
1971-05-07
Foamed thermoplastics
SE7105962A
SE384217B
(en)
1970-05-08
1971-05-07
WAY TO PRODUCE A FOAMED, THERMOPLASTIC POLY-ALFA-OLEPHINIC MATERIAL
DE19712122771
DE2122771A1
(en)
1970-05-08
1971-05-07
Process for the production of foamed thermoplastic materials
NL7106285A
NL7106285A
(en)
1970-05-08
1971-05-07
BE766974A
BE766974A
(en)
1970-05-08
1971-05-10
EXPANDED THERMOPLASTIC MATERIALS
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
GB22381/70A
GB1300262A
(en)
1970-05-08
1970-05-08
Foamed thermoplastics
Publications (1)
Publication Number
Publication Date
GB1300262A
true
GB1300262A
(en)
1972-12-20
Family
ID=10178473
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB22381/70A
Expired
GB1300262A
(en)
1970-05-08
1970-05-08
Foamed thermoplastics
Country Status (11)
Country
Link
US
(1)
US3793239A
(en)
BE
(1)
BE766974A
(en)
CA
(1)
CA919850A
(en)
DE
(1)
DE2122771A1
(en)
DK
(1)
DK127003B
(en)
ES
(1)
ES390958A1
(en)
FR
(1)
FR2088432B1
(en)
GB
(1)
GB1300262A
(en)
NL
(1)
NL7106285A
(en)
SE
(1)
SE384217B
(en)
ZA
(1)
ZA712792B
(en)
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4275112A
(en)
*
1978-08-28
1981-06-23
Ionic Controls, Inc.
Support for decorative and communicative material
EP0214858A2
(en)
*
1985-09-06
1987-03-18
Kabushiki Kaisha Serutekuno
Open-cell foam materials
Families Citing this family (5)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3854581A
(en)
*
1972-04-10
1974-12-17
Monarch Marking Systems Inc
Pressure-sensitive material and supporting material combination
JPS5148083B2
(en)
*
1973-01-09
1976-12-18
DE2543248C2
(en)
*
1975-09-27
1983-11-24
Dynamit Nobel Ag, 5210 Troisdorf
Process for the production of foam sheets from olefin polymers
JP3106139B2
(en)
*
1993-04-27
2000-11-06
サン−ゴバン パフォーマンス プラスティックスコーポレイション
Composition of polymethylpentene and polypropylene having excellent releasability and method for producing film thereof
WO2004094526A1
(en)
*
2003-04-24
2004-11-04
National Research Council Of Canada
Low loss foam composition and cable having low loss foam layer
1970
1970-05-08
GB
GB22381/70A
patent/GB1300262A/en
not_active
Expired
1971
1971-04-30
US
US00139273A
patent/US3793239A/en
not_active
Expired – Lifetime
1971-04-30
ZA
ZA712792A
patent/ZA712792B/en
unknown
1971-05-04
CA
CA112152A
patent/CA919850A/en
not_active
Expired
1971-05-05
DK
DK217671AA
patent/DK127003B/en
unknown
1971-05-07
SE
SE7105962A
patent/SE384217B/en
unknown
1971-05-07
ES
ES390958A
patent/ES390958A1/en
not_active
Expired
1971-05-07
NL
NL7106285A
patent/NL7106285A/xx
unknown
1971-05-07
DE
DE19712122771
patent/DE2122771A1/en
active
Pending
1971-05-07
FR
FR7116528A
patent/FR2088432B1/fr
not_active
Expired
1971-05-10
BE
BE766974A
patent/BE766974A/en
unknown
Cited By (4)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4275112A
(en)
*
1978-08-28
1981-06-23
Ionic Controls, Inc.
Support for decorative and communicative material
EP0214858A2
(en)
*
1985-09-06
1987-03-18
Kabushiki Kaisha Serutekuno
Open-cell foam materials
EP0214858A3
(en)
*
1985-09-06
1987-12-02
Seru Techno Kk
Open-cell foam materials
US4877814A
(en)
*
1985-09-06
1989-10-31
Kabushiki Kaisha Serutekuno
Process for producing open-cell polyethylene foam materials and the resultant product
Also Published As
Publication number
Publication date
SE384217B
(en)
1976-04-26
DE2122771A1
(en)
1971-12-02
DK127003B
(en)
1973-09-10
US3793239A
(en)
1974-02-19
FR2088432A1
(en)
1972-01-07
BE766974A
(en)
1971-11-10
NL7106285A
(en)
1971-11-10
FR2088432B1
(en)
1975-06-06
CA919850A
(en)
1973-01-23
ZA712792B
(en)
1972-04-26
ES390958A1
(en)
1974-03-16
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Legal Events
Date
Code
Title
Description
1973-05-02
PS
Patent sealed [section 19, patents act 1949]
1979-12-28
PCNP
Patent ceased through non-payment of renewal fee
