ES419951A1 - Preparation of films with a closed cellular structure made of polyurethanes - Google Patents

Preparation of films with a closed cellular structure made of polyurethanes

Info

Publication number
ES419951A1
ES419951A1 ES419951A ES419951A ES419951A1 ES 419951 A1 ES419951 A1 ES 419951A1 ES 419951 A ES419951 A ES 419951A ES 419951 A ES419951 A ES 419951A ES 419951 A1 ES419951 A1 ES 419951A1
Authority
ES
Spain
Prior art keywords
cellular structure
films
polyurethanes
preparation
closed cellular
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
Application number
ES419951A
Other languages
Spanish (es)
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.)
Rhone Poulenc SA
Original Assignee
Rhone Poulenc SA
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 Rhone Poulenc SA filed Critical Rhone Poulenc SA
Publication of ES419951A1 publication Critical patent/ES419951A1/en
Expired 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
    • 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
    • C08J9/06—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 chemical blowing agent
    • C08J9/10—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 chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
    • 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
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Laminated Bodies (AREA)
  • Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Abstract

Procedure for preparing flexible thermoplastic films, with closed cellular structure, made of polyurethane, characterized in that a film consisting of a mixture of linear polyurethane, a porogenic agent and possibly an activator and fillers is heated, the heating temperature being at least equal to the which is necessary to cause the decomposition of the porogenic agent. (Machine-translation by Google Translate, not legally binding)
ES419951A 1972-10-25 1973-10-25 Preparation of films with a closed cellular structure made of polyurethanes Expired ES419951A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7237844A FR2233166B1 (en) 1972-10-25 1972-10-25

Publications (1)

Publication Number Publication Date
ES419951A1 true ES419951A1 (en) 1976-04-16

Family

ID=9106208

Family Applications (1)

Application Number Title Priority Date Filing Date
ES419951A Expired ES419951A1 (en) 1972-10-25 1973-10-25 Preparation of films with a closed cellular structure made of polyurethanes

Country Status (8)

Country Link
BE (1) BE806471A (en)
CH (1) CH562278A5 (en)
DE (1) DE2353531A1 (en)
ES (1) ES419951A1 (en)
FR (1) FR2233166B1 (en)
GB (1) GB1417218A (en)
IT (1) IT998972B (en)
NL (1) NL7314296A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2512736B1 (en) * 1981-09-14 1987-11-20 Dana Corp METHOD FOR FORMING A SEAL AND SEAL OBTAINED
EP0569145B1 (en) * 1992-05-08 1999-03-24 Showa Highpolymer Co., Ltd. Polyester fibers
US5321052A (en) * 1992-05-12 1994-06-14 Showa Highpolymer Co., Ltd. Polyester foamed thin materials
US5314927A (en) * 1992-05-13 1994-05-24 Showa Highpolymer Co., Ltd. Polyester foamed articles and method for producing the same
WO2008082474A1 (en) * 2006-12-29 2008-07-10 Rubberlite Incorporated Closed cell foams comprising urethane elastomers
CN112480361B (en) * 2020-12-01 2022-03-08 上海恒安聚氨酯股份有限公司 Preparation method of moisture-permeable thermoplastic polyurethane film

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1006926A (en) * 1963-06-17 1965-10-06 Haveg Industries Inc Foamed thermoplastic resins

Also Published As

Publication number Publication date
DE2353531A1 (en) 1974-05-09
NL7314296A (en) 1974-04-29
GB1417218A (en) 1975-12-10
FR2233166B1 (en) 1976-10-29
IT998972B (en) 1976-02-20
BE806471A (en) 1974-04-24
CH562278A5 (en) 1975-05-30
FR2233166A1 (en) 1975-01-10

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