EP0440217A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Method for producing chloroformyl-functional organopolysiloxane
Assignee: DuPont Toray Specialty Materials KK
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Filing: 1991-01-31
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Granted: —
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Expires: 2011-01-31
Abstract
Abstract There is disclosed an organopolysiloxane having a molecular weight of 200 to 100,000 which contains at least one silicon-bonded, chloroformyl group-containing organic group, said organopolysiloxane being prepared by reacting (I) the corresponding organopolysiloxane which contains at least one silicon-bonded, triorganosiloxycarbonyl group-containing organic group; and (II) an inorganic halide, such as thionyl chloride. By virtue of its highly reactive chloroformyl group, the organopolysiloxane of the invention find utility as modifiers for polyamide resins, polyester resins, and the like.
Inventors
- 👤 Okawa Tadashi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-28 13:02
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/04; C08G77/045; C08G77/38; C08G77/382; C08G77/385
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
An organopolysiloxane having a molecular weight of 200 to 100,000 which contains at least one silicon-bonded, chloroformyl group-containing organic group, said organopolysiloxane being prepared by reacting (I) an organopolysiloxane having a molecular weight of 200 to 100,000 which contains at least one silicon-bonded, triorganosiloxycarbonyl group-containing organic group; and (II) an inorganic halide.
Claim 2
Dependent Claim
46 words
In a method for preparing an organopolysiloxane having at least one silicon-bonded, chloroformyl group-containing organic group, the improvement comprising reacting (I) an organopolysiloxane having a molecular weight of 200 to 100,000 which contains at least one silicon-bonded, triorganosiloxycarbonyl group-containing organic group; and (II) an inorganic halide.
References Cited (Backward Citations)
No citation records indexed.
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