EP0363006A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
A method for curing storage stable organosiloxane compositions containing microencapsulated ingredients
Assignee: Dow Silicones Corp
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Filing: 1989-09-01
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Granted: —
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Expires: 2009-09-01
Abstract
Abstract One part, storage stable organosiloxane compositions containing a reactant and/or curing catalyst that is encapsulated within a layer of a thermoplastic organic polymer are cured at temperatures below the melting point of the thermoplastic organic polymer by contacting the composition with a solvent for the organic polymer. The encapsulated reactants and/or catalysts can be prepared using known techniques.
Inventors
- 👤 Donnie Ray Juen
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 08:20
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/24; C08J3/241; C08K; C08K9/00; C08K9/10; C08J2383/00; C08J2383/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
In a method for curing one-part, storage stable organosiloxane compositions comprising (A) a curable polyorganosiloxane containing at least two alkenyl radicals or silicon-bonded hydroxyl groups per molecule; (B) a curing agent in an amount sufficient to cure said polyorganosiloxane, and (C) a catalyst or accelerator in an amount sufficient to promote curing of said polyorganosiloxane, where at least one ingredient selected from said curing agent (B) and said catalyst (C) is encapsulated as microcapsules within at least one layer of a thermoplastic organic polymer, the improvement comprising contacting said composition with an amount of a solvent for said thermoplastic organic polymer sufficient to liberate the encapsulated ingredient(s) from said microcapsules and thereby initiate curing of the composition at a temperature below the melting or softening point of said thermoplastic organic polymer.
Claim 2
Dependent Claim
131 words
In a method for curing one-part, storage stable organosiloxane compositions comprising (A) a curable polyorganosiloxane containing at least two alkenyl radicals or silicon-bonded hydroxyl groups per molecule; (B) a curing agent in an amount sufficient to cure said polyorganosiloxane, and (C) a catalyst or accelerator in an amount sufficient to promote curing of said polyorganosiloxane, where at least one ingredient selected from said curing agent (B) and said catalyst (C) is encapsulated as microcapsules within at least one layer of a thermoplastic organic polymer, the improvement comprising contacting said composition with an amount of a solvent for said thermoplastic organic polymer sufficient to liberate the encapsulated ingredient(s) from said microcapsules and thereby initiate curing of the composition at a temperature below the melting or softening point of said thermoplastic organic polymer.
References Cited (Backward Citations)
No citation records indexed.
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