Polysiloxane-grafted copolymer pressure sensitive adhesive...

Details Polysiloxane-grafted copolymer pressure sensitive adhesive... Polysiloxane-grafted copolymer pressure sensitive adhesive...

C - Chemistry, Metallurgy

08

L

400/3010, 117/31

C08L 51/00 (2006.01) C08F 290/06 (2006.01) C08L 33/06 (2006.01) C09J 7/02 (2006.01) C09J 151/00 (2006.01) C09J 155/00 (2006.01) C09J 183/10 (2006.01)

Patent

CA 1274333

POLYSILOXANE-GRAFTED COPOLYMER PRESSURE SENSITIVE ADHESIVE COMPOSITION AND SHEET MATERIALS COATED THEREWITH Abstract of the Disclosure This invention provides pressure sensitive adhesive (PSA) compositions comprising a copolymer having a vinyl polymeric backbone having grafted thereto polysiloxane moieties. The compositions may contain other ingredients such as tackifier and/or plasticizer. An exposed surface of the PSA composition is initially positionable on a substrate to which it will be adhered but, once adhered, builds adhesion to form a strong bond. The PSA compositions may be used alone or in blends with unsiliconized PSA compositions. The invention also provides sheet materials coated with the PSA composition such as tape, labels, etc.

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