Silicone release layers, laminates and methods

A silicone release laminate formed by a support with a silicone release layer. A separate pressure-sensitive silicone adhesive release layer may be on the same side of the support as the release layer, or on opposite sides of the support. The force required to separate the adhesive from the release...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	QUINN, SHARON A, PENNACE, JOHN R
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES BANDAGES, DRESSINGS OR ABSORBENT PADS CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES CHEMISTRY DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS DISINFECTION, STERILISATION, OR DEODORISATION OF AIR DYES FILTERS IMPLANTABLE INTO BLOOD VESSELS FIRST-AID KITS FOMENTATION HUMAN NECESSITIES HYGIENE MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES MEDICAL OR VETERINARY SCIENCE METALLURGY METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES PAINTS POLISHES PROSTHESES TREATMENT OR PROTECTION OF EYES OR EARS USE OF MATERIALS AS ADHESIVES
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Beschreibung
Zusammenfassung:	A silicone release laminate formed by a support with a silicone release layer. A separate pressure-sensitive silicone adhesive release layer may be on the same side of the support as the release layer, or on opposite sides of the support. The force required to separate the adhesive from the release layer is less than about 100 grams (3.3 oz.) per inch, and preferably less than 50 grams (1.7 oz.) per inch. The release layer is formed from one or more organopolysiloxanes having a viscosity below 1000 centipoises, and preferably below about 600 centipoises, with a high degree of cross-linking. The organopolysiloxanes may be produced directly by hydrolysis of organo-substituted halosiloxanes and depolymerization; or by hydration of higher molecular weight organopolysiloxanes and heat treatment to produce lower weight constituents.