Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1986-07-22
1987-12-01
Buffalow, Edith
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
4283088, 428325, 428343, 428355, 428446, 428429, C08R 334
Patent
active
047105364
ABSTRACT:
By incorporating hydrophobic silica into acrylic pressure-sensitive adhesive tape, the shear strength at elevated temperatures is significantly improved, and adhesion and physical properties are maintained or improved. The hydrophobic silica preferably has a surface area from 50 to 400 m.sup.2 /g. A preferred acrylic pressure-sensitive adhesive layer comprises a copolymer of (a) at least one alkyl acrylate having an average of 4-12 carbon atoms in its alkyl group and (b) from 3 to 20% by weight of copolymerizable monomer having a polar group such as acrylic acid.
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Klingen Jurgen
Zimmerman Patrick G.
Buffalow Edith
Francis Richard
Minnesota Mining and Manufacturing Company
Sell Donald M.
Smith James A.
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