CA2105870A1 - Perforated plastic foam and process for making - Google Patents

Perforated plastic foam and process for making

Info

Publication number
CA2105870A1
CA2105870A1 CA002105870A CA2105870A CA2105870A1 CA 2105870 A1 CA2105870 A1 CA 2105870A1 CA 002105870 A CA002105870 A CA 002105870A CA 2105870 A CA2105870 A CA 2105870A CA 2105870 A1 CA2105870 A1 CA 2105870A1
Authority
CA
Canada
Prior art keywords
foam
plastic foam
channels
making
plastic
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
Application number
CA002105870A
Other languages
French (fr)
Other versions
CA2105870C (en
Inventor
Paul A. Kolosowski
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.)
Dow Chemical Co
Original Assignee
Paul A. Kolosowski
The Dow Chemical Company
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.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24786315&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2105870(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Paul A. Kolosowski, The Dow Chemical Company filed Critical Paul A. Kolosowski
Publication of CA2105870A1 publication Critical patent/CA2105870A1/en
Application granted granted Critical
Publication of CA2105870C publication Critical patent/CA2105870C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/56—After-treatment of articles, e.g. for altering the shape
    • B29C44/5627—After-treatment of articles, e.g. for altering the shape by mechanical deformation, e.g. crushing, embossing, stretching
    • B29C44/5663—After-treatment of articles, e.g. for altering the shape by mechanical deformation, e.g. crushing, embossing, stretching by perforating the foam, e.g. to open the cells
    • 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
    • B29C44/34—Auxiliary operations
    • B29C44/3402—Details of processes or apparatus for reducing environmental damage or for working-up compositions comprising inert blowing agents or biodegradable components
    • 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
    • B29C44/34—Auxiliary operations
    • B29C44/56—After-treatment of articles, e.g. for altering the shape
    • B29C44/5609—Purging of residual gas, e.g. noxious or explosive blowing agents
    • 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
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0065—Permeability to gases
    • 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

Abstract

Disclosed is a closed-cell plastic foam structure comprising a plastic foam (10) defining a multiplicity of channels (30) ex-tending from the surface of the foam into the foam. The channels are free of direction with respect to the longitudinal extension of the foam and preferably extend perpendicularly to the longitudinal extension to the foam structure. The channels are in gase-ous communication with the environment outside of the foam structure, and provide enhanced release of blowing agent. Further disclosed is a process for making a plastic foam structure comprising (a) providing the plastic foam and (b) perforating the foam at its surface to form a multiplicity of channels extending from the surface into the foam to form the foam structure.
CA002105870A 1991-04-30 1992-03-24 Perforated plastic foam and process for making Expired - Lifetime CA2105870C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US69383591A 1991-04-30 1991-04-30
US07/693,835 1991-04-30
PCT/US1992/002344 WO1992019439A1 (en) 1991-04-30 1992-03-24 Perforated plastic foam and process for making

Publications (2)

Publication Number Publication Date
CA2105870A1 true CA2105870A1 (en) 1992-10-31
CA2105870C CA2105870C (en) 2002-09-17

Family

ID=24786315

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002105870A Expired - Lifetime CA2105870C (en) 1991-04-30 1992-03-24 Perforated plastic foam and process for making

Country Status (16)

Country Link
US (1) US5424016A (en)
EP (1) EP0584276B2 (en)
JP (1) JP3431141B2 (en)
KR (1) KR100190474B1 (en)
AT (1) ATE138310T1 (en)
AU (1) AU2182992A (en)
CA (1) CA2105870C (en)
DE (1) DE69210997T3 (en)
DK (1) DK0584276T4 (en)
ES (1) ES2087541T5 (en)
FI (1) FI934803A0 (en)
GR (2) GR3020015T3 (en)
HU (1) HU217800B (en)
MX (1) MX9201987A (en)
NO (1) NO933917D0 (en)
WO (1) WO1992019439A1 (en)

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Also Published As

Publication number Publication date
FI934803A (en) 1993-10-29
ATE138310T1 (en) 1996-06-15
DE69210997T3 (en) 1999-12-16
EP0584276A1 (en) 1994-03-02
MX9201987A (en) 1992-11-01
HUT65825A (en) 1994-07-28
EP0584276B2 (en) 1999-08-25
US5424016A (en) 1995-06-13
NO933917L (en) 1993-10-29
ES2087541T5 (en) 1999-10-16
EP0584276B1 (en) 1996-05-22
DE69210997D1 (en) 1996-06-27
JPH06507129A (en) 1994-08-11
CA2105870C (en) 2002-09-17
DK0584276T3 (en) 1996-10-07
AU2182992A (en) 1992-12-21
NO933917D0 (en) 1993-10-29
JP3431141B2 (en) 2003-07-28
GR3031736T3 (en) 2000-02-29
KR100190474B1 (en) 1999-06-01
DE69210997T2 (en) 1996-09-26
EP0584276A4 (en) 1993-12-20
WO1992019439A1 (en) 1992-11-12
HU217800B (en) 2000-04-28
FI934803A0 (en) 1993-10-29
DK0584276T4 (en) 2000-03-27
ES2087541T3 (en) 1996-07-16
GR3020015T3 (en) 1996-08-31

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