BR8604500A - Processo para preparar produtos celulares de poliuretano de alta resiliencia moldado que exigem menos compressao para evitar que os produtos se contraiam substancialmente ou se alterem dimensionalmente ao serem esfriados - Google Patents

Processo para preparar produtos celulares de poliuretano de alta resiliencia moldado que exigem menos compressao para evitar que os produtos se contraiam substancialmente ou se alterem dimensionalmente ao serem esfriados

Info

Publication number
BR8604500A
BR8604500A BR8604500A BR8604500A BR8604500A BR 8604500 A BR8604500 A BR 8604500A BR 8604500 A BR8604500 A BR 8604500A BR 8604500 A BR8604500 A BR 8604500A BR 8604500 A BR8604500 A BR 8604500A
Authority
BR
Brazil
Prior art keywords
products
cooled
require less
high resilience
less compression
Prior art date
Application number
BR8604500A
Other languages
English (en)
Inventor
Keith Douglas Cavender
Original Assignee
Union Carbide Corp
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
Application filed by Union Carbide Corp filed Critical Union Carbide Corp
Publication of BR8604500A publication Critical patent/BR8604500A/pt

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
    • 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
    • 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
    • B29C44/3438—Bursting the cell walls by a sudden pressure release
    • 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
    • B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
    • 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
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/15—Aging of foamed resin products

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
BR8604500A 1985-09-20 1986-09-19 Processo para preparar produtos celulares de poliuretano de alta resiliencia moldado que exigem menos compressao para evitar que os produtos se contraiam substancialmente ou se alterem dimensionalmente ao serem esfriados BR8604500A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/778,307 US4717518A (en) 1985-09-20 1985-09-20 Novel process for making polyurethane products which require reduced crushing in preventing said products from substantially shrinking or changing dimensionally upon cooling

Publications (1)

Publication Number Publication Date
BR8604500A true BR8604500A (pt) 1987-05-19

Family

ID=25112909

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8604500A BR8604500A (pt) 1985-09-20 1986-09-19 Processo para preparar produtos celulares de poliuretano de alta resiliencia moldado que exigem menos compressao para evitar que os produtos se contraiam substancialmente ou se alterem dimensionalmente ao serem esfriados

Country Status (7)

Country Link
US (1) US4717518A (pt)
EP (1) EP0219699A3 (pt)
JP (1) JPS6272712A (pt)
KR (1) KR910005123B1 (pt)
BR (1) BR8604500A (pt)
CA (1) CA1255867A (pt)
MX (1) MX164058B (pt)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2215658A (en) * 1988-03-17 1989-09-27 Ford Motor Co Manufacture of foamed seat cushions
US5164197A (en) * 1990-03-08 1992-11-17 Creme Art Corporation Batch molding of open-cell soft polyurethane foam
US5061420A (en) * 1990-03-08 1991-10-29 Creme Art Corporation Batch molding of open-cell soft polyurethane foam
US5772936A (en) * 1995-02-08 1998-06-30 Arco Chemical Technology, L.P. Method of reducing pinch deformation and contour lines in polyurethane molded foam employing timed partial pressure release
US5549841A (en) * 1995-03-24 1996-08-27 Arco Chemical Technology, L.P. Process for manufacturing foam with improved wet set properties
US5700847A (en) * 1995-12-04 1997-12-23 Arco Chemical Technology, L.P. Molded polyurethane foam with enhanced physical properties
US5668191A (en) * 1995-12-21 1997-09-16 Arco Chemical Technology, L.P. One-shot cold molded flexible polyurethane foam from low primary hydroxyl polyols and process for the preparation thereof
US6051622A (en) * 1998-09-17 2000-04-18 Arco Chemical Technology, L.P. Low resilience, low frequency molded polyurethane foam
KR100452055B1 (ko) * 2001-12-26 2004-10-12 충만산업주식회사 차량연료 감지용 플로트의 제조방법
CA2674082C (en) 2006-12-29 2015-12-01 Johnson Controls Technology Company Polyurethane foam formulation, products and methods
CN102227295B (zh) * 2008-10-30 2017-05-10 江森自控科技公司 棕榈油基聚氨酯泡沫产品及其制备方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2118739A1 (de) * 1971-04-17 1973-03-15 Tech Akustik Gmbh & Co Verfahren und vorrichtung zum oeffnen von in weichschaumformkoerpern vorliegenden geschlossenen zellen
GB1402718A (en) * 1971-08-03 1975-08-13 Storey Brothers & Co Manufacture of vehicle seats and other upholstered items
FR2428519A1 (fr) * 1978-06-13 1980-01-11 Ameublement Ind Et Tech Bouchon pour trou de coulee de matiere expansee dans un moule
US4579700A (en) * 1983-11-07 1986-04-01 Union Carbide Corporation Novel process for making flexible polyurethane cellular products including a novel cell opening technique

Also Published As

Publication number Publication date
JPH0441689B2 (pt) 1992-07-09
EP0219699A3 (en) 1989-01-18
US4717518A (en) 1988-01-05
EP0219699A2 (en) 1987-04-29
KR910005123B1 (ko) 1991-07-23
MX164058B (es) 1992-07-13
KR870002920A (ko) 1987-04-13
JPS6272712A (ja) 1987-04-03
CA1255867A (en) 1989-06-20

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