ES422477A1 - Polysiloxanes containing cyanoalkoxy radicals - Google Patents

Polysiloxanes containing cyanoalkoxy radicals

Info

Publication number
ES422477A1
ES422477A1 ES422477A ES422477A ES422477A1 ES 422477 A1 ES422477 A1 ES 422477A1 ES 422477 A ES422477 A ES 422477A ES 422477 A ES422477 A ES 422477A ES 422477 A1 ES422477 A1 ES 422477A1
Authority
ES
Spain
Prior art keywords
polyether
mixture
cyanoalkoxy
value
alcohol
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
ES422477A
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.)
Union Carbide Corp
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 ES422477A1 publication Critical patent/ES422477A1/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/04—Polysiloxanes
    • C08G77/045—Polysiloxanes containing less than 25 silicon atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic System
    • C07F7/02—Silicon compounds
    • C07F7/08—Compounds having one or more C—Si linkages
    • C07F7/0834—Compounds having one or more O-Si linkage
    • C07F7/0838—Compounds with one or more Si-O-Si sequences
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic System
    • C07F7/02—Silicon compounds
    • C07F7/08—Compounds having one or more C—Si linkages
    • C07F7/0834—Compounds having one or more O-Si linkage
    • C07F7/0838—Compounds with one or more Si-O-Si sequences
    • C07F7/0872—Preparation and treatment thereof
    • C07F7/0876—Reactions involving the formation of bonds to a Si atom of a Si-O-Si sequence other than a bond of the Si-O-Si linkage
    • C07F7/0878—Si-C bond
    • C07F7/0879—Hydrosilylation reactions

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

Process for producing high elasticity polyether-urethane foam, said process comprising expanding and reacting a mixture comprising: (I) organic polyol chosen from the group consisting of (A) a polyether-triol containing at least 40 percent in moles of primary hydroxyl groups and having a molecular weight of about 2,000 to about 8,000 and (B) a mixture of said polyether triol and another polyether having an average of at least two hydroxyl groups, said polyether triol constituting in said mixture at least 50 weight percent of the total polyol content; (II) organic polyisocyanate, said organic polyol and said polyisocyanate being present in the mixture in a major amount, and in the relative amount required to produce the urethane; (III) blowing agent, in a secondary quantity sufficient to expand the reaction mixture; (IV) a catalytic amount of catalyst for the production of the urethane; and (V) a cyanoalkoxy-alcohol modified siloxane fluid, having the average formula: (X) zR3-zSiO (R2SiO) x [(X) (R) SiO] ySiR3-zXz where x has a value from 2 to 6 inclusive; y has a value from 0 to 6 inclusive; z has a value from 0 to 1 inclusive; R is a lower alcohol or phenyl radical; and X is a cyanoalkoxy-alcohol radical having the formula - (O) nR'OR''CN, where n has a value of 0 or 1, R'is an alcoholic radical having 3 to 8 carbon atoms, and R'' is an alcoholic radical having 2 to 4 carbon atoms, said siloxane containing at least one of said cyanoalkoxy-alcohol radicals, and having an average molecular weight of between approximately 400 and approximately 2000, in an amount sufficient to stabilize the foam against voids and shrinkage. (Machine-translation by Google Translate, not legally binding)
ES422477A 1973-02-22 1974-01-21 Polysiloxanes containing cyanoalkoxy radicals Expired ES422477A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US33476773A 1973-02-22 1973-02-22

Publications (1)

Publication Number Publication Date
ES422477A1 true ES422477A1 (en) 1976-05-01

Family

ID=23308745

Family Applications (1)

Application Number Title Priority Date Filing Date
ES422477A Expired ES422477A1 (en) 1973-02-22 1974-01-21 Polysiloxanes containing cyanoalkoxy radicals

Country Status (7)

Country Link
JP (1) JPS5213836B2 (en)
BE (1) BE809979A (en)
CA (1) CA1032551A (en)
ES (1) ES422477A1 (en)
FR (1) FR2219169B1 (en)
GB (1) GB1462066A (en)
IT (1) IT1007002B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH597270A5 (en) * 1974-08-30 1978-03-31 Goldschmidt Ag Th
US4331555A (en) * 1980-09-29 1982-05-25 Union Carbide Corporation Use of organosiloxane compositions as foam stabilizers in flexible polyester polyurethane foam
JP2628099B2 (en) * 1989-08-18 1997-07-09 武田薬品工業株式会社 Manufacturing method of flexible urethane foam

Also Published As

Publication number Publication date
JPS5213836B2 (en) 1977-04-16
BE809979A (en) 1974-07-22
IT1007002B (en) 1976-10-30
JPS49109499A (en) 1974-10-17
DE2402690A1 (en) 1974-09-12
DE2402690B2 (en) 1977-04-21
CA1032551A (en) 1978-06-06
GB1462066A (en) 1977-01-19
AU6470074A (en) 1975-07-24
FR2219169A1 (en) 1974-09-20
FR2219169B1 (en) 1978-03-31

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