Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Adhesive outermost layer
Patent
1986-05-19
1987-09-15
Marquis, Melvyn I.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Adhesive outermost layer
428354, 428906, 427208, 525283, 525288, 526279, C09J 702
Patent
active
046939350
ABSTRACT:
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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Francis Richard
Marquis Melvyn I.
Minnesota Mining and Manufacturing Company
Sell Donald M.
Smith James A.
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