Composition for manufacturing release coatings, release coating composition, and related methods

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The use of a solvent-free, liquid silicate resin at 25°C addresses the processing challenges of conventional silicone resins, enabling efficient and cost-effective formulation of release coatings.

KR103000106B1Active Publication Date: 2026-08-05DOW SILICONES CORP

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Patent Information

Application Number: KR1020227026267
Authority / Receiving Office: KR · KR
Patent Type: Patents
Current Assignee / Owner
Priority Date: 2019-12-30
Filing Date: 2020-12-22
Publication Date: 2026-08-05
Estimated Expiration: 2040-12-22

Application Information

Patent Timeline

30 Dec 2019

Priority

22 Dec 2020

Application

KR1020227026267

05 Aug 2026

Publication

KR103000106B1

IPC: C09D183/04; C08G77/04; C08G77/12; C08G77/14; C08G77/20; C08J7/04; C08K5/56; C08L83/00

CPC: C09D183/04; C08G77/04; C08G77/12; C08G77/14; C08G77/20; C08J7/0427; C08K5/56; C08L83/00

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Application Domain

Film/foil adhesives Coatings

Technology Topics

Solvent free Materials science

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AI Technical Summary

Technical Problem

Conventional silicone resins that are solid at 25°C require solvents for processing and miscibility with liquid organopolysiloxanes, necessitating additional steps and energy for solvent removal, which increases costs.

Method used

A silicate resin that is liquid at 25°C without any solvent, miscible with organopolysiloxanes, eliminating the need for solvent-based processing and subsequent removal steps.

Benefits of technology

Facilitates easy formulation and reduces processing costs by avoiding solvent use and associated steps, enhancing the efficiency of release coating compositions.

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Abstract

A base composition for forming a release coating composition is disclosed. The base composition comprises (A) a silicate resin that is liquid at 25°C in the absence of a solvent. (A) the silicate resin comprises an average of at least one silicon-bonded ethylene-based unsaturated group per molecule. The composition further comprises (B) an organopolysiloxane comprising an average of at least two silicon-bonded ethylene-based unsaturated groups per molecule. (A) the silicate resin is miscible with (B) the organopolysiloxane in the absence of any solvent. A method for preparing the base composition and a method for preparing the release coating composition are also disclosed.

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