BE765064A - Silicone resin prepn - using primary and tertiary aliphatic alcohol coreactants - Google Patents

Silicone resin prepn - using primary and tertiary aliphatic alcohol coreactants

Info

Publication number
BE765064A
BE765064A BE765064A BE765064A BE765064A BE 765064 A BE765064 A BE 765064A BE 765064 A BE765064 A BE 765064A BE 765064 A BE765064 A BE 765064A BE 765064 A BE765064 A BE 765064A
Authority
BE
Belgium
Prior art keywords
mole
coreactants
prepn
primary
silicone resin
Prior art date
Application number
BE765064A
Other languages
French (fr)
Original Assignee
Goldschmidt Ag Th
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
Priority claimed from DE19702020244 external-priority patent/DE2020244A1/en
Application filed by Goldschmidt Ag Th filed Critical Goldschmidt Ag Th
Publication of BE765064A publication Critical patent/BE765064A/en

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
    • C08G77/06—Preparatory processes
    • 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
    • C08G77/14—Polysiloxanes containing silicon bound to oxygen-containing groups
    • C08G77/18—Polysiloxanes containing silicon bound to oxygen-containing groups to alkoxy or aryloxy groups

Landscapes

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

Abstract

The resin is prepared by reaction of a mixture of halogenosilanes with a mixture of (a) t-aliphatic (4 - 8C) alcohols and (b) pri. or sec. aliphatic (1-8C pref. 1 - 4C) alcohols in amounts of 0.4 - 0.6 mole (a) per mole halogen atom linked to Si and 0.5 - 1 mole (b) per mole (a), at 10 - 90 degrees C (pref. 20 - 40 degrees C) followed by condensation. It has a proportion of R groups/Si groups of 0.95 - 1.5 where R is methyl and/or phenyl (replaceable by up to 20 mole% vinyl) and Si valencies are saturated by O and alkoxy groups (present as 0.75 mole alkoxy/100 g). The resin has excellent long term heat resistance and is prepared in good yield with hig reproducibility.
BE765064A 1970-04-25 1971-03-31 Silicone resin prepn - using primary and tertiary aliphatic alcohol coreactants BE765064A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702020244 DE2020244A1 (en) 1969-04-29 1970-04-25 Agricultural machinery, especially combine harvesters

Publications (1)

Publication Number Publication Date
BE765064A true BE765064A (en) 1971-08-16

Family

ID=5769335

Family Applications (1)

Application Number Title Priority Date Filing Date
BE765064A BE765064A (en) 1970-04-25 1971-03-31 Silicone resin prepn - using primary and tertiary aliphatic alcohol coreactants

Country Status (1)

Country Link
BE (1) BE765064A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4996174A (en) * 1986-03-27 1991-02-26 Imperial Chemical Industries Plc Production of ceramic materials

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4996174A (en) * 1986-03-27 1991-02-26 Imperial Chemical Industries Plc Production of ceramic materials

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