GB707587A - Manufacture of poly-alkoxy-, poly-aryloxy- or poly-acyloxy-siloxanes - Google Patents

Manufacture of poly-alkoxy-, poly-aryloxy- or poly-acyloxy-siloxanes

Info

Publication number
GB707587A
GB707587A GB17686/51A GB1768651A GB707587A GB 707587 A GB707587 A GB 707587A GB 17686/51 A GB17686/51 A GB 17686/51A GB 1768651 A GB1768651 A GB 1768651A GB 707587 A GB707587 A GB 707587A
Authority
GB
United Kingdom
Prior art keywords
poly
acyloxy
aryloxy
alkoxy
siloxanes
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
GB17686/51A
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.)
Wacker Chemie AG
Original Assignee
Wacker Chemie AG
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 Wacker Chemie AG filed Critical Wacker Chemie AG
Publication of GB707587A publication Critical patent/GB707587A/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
    • C08G77/38—Polysiloxanes modified by chemical after-treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • General 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

In making alkoxy-, aryloxy- or acyloxy-polysiloxanes by reacting a polysiloxane containing -RHSiO- units, in which R is a saturated aliphatic hydrocarbon radical, with an alcohol, phenol or a compound containing at least one carboxylic acid group, the reaction is effected in the presence of an ansolvo acid, e.g. zinc chloride, as catalyst. In examples, a polysiloxane containing CH3.H.SiO- units is reacted with (1) ethyl alcohol, and (2) acetic acid, in the presence of anhydrous zinc chloride. Specification 707,564 is referred to.
GB17686/51A 1950-07-27 1951-07-25 Manufacture of poly-alkoxy-, poly-aryloxy- or poly-acyloxy-siloxanes Expired GB707587A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE707587X 1950-07-27

Publications (1)

Publication Number Publication Date
GB707587A true GB707587A (en) 1954-04-21

Family

ID=6617419

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17686/51A Expired GB707587A (en) 1950-07-27 1951-07-25 Manufacture of poly-alkoxy-, poly-aryloxy- or poly-acyloxy-siloxanes

Country Status (1)

Country Link
GB (1) GB707587A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0475440A2 (en) * 1990-09-14 1992-03-18 Shin-Etsu Chemical Co., Ltd. Method for the preparation of a higher alkoxy-substituted organopolysiloxane

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0475440A2 (en) * 1990-09-14 1992-03-18 Shin-Etsu Chemical Co., Ltd. Method for the preparation of a higher alkoxy-substituted organopolysiloxane
EP0475440A3 (en) * 1990-09-14 1992-05-13 Shin-Etsu Chemical Co., Ltd. Method for the preparation of a higher alkoxy-substituted organopolysiloxane

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