Transparent laminates

Details Transparent laminates Transparent laminates

1989-12-06

1991-09-10

Thomas, Alexander S.

Stock material or miscellaneous articles

Layer or component removable to expose adhesive

Halogen containing compound

4284231, 4284244, 4284256, 359490, G02B 530, B32B 1710, B32B 2740, B32B 2732

Patent

active

050472720

ABSTRACT:
Novel laminates comprise transparent polymers with a high content of hydroxyl groups as core layer and adhesive layers applied to one or both sides which are tack-free under normal conditions and which can accept an outer layer, thermoplastic polyurethane-polyureas having a substantially linear molecular structure with exclusively aliphatically or cycloaliphatically bonded urethane segments and urea segments and a content of urea groups --NH--CO--NH-- of 1 to 20% by weight and a content of carboxyl groups --COOH bonded directly to the main chain of the molecule in lateral positions, of 0.001 to 10% by weight, being used as adhesive layers.

REFERENCES:
patent: 4174240 (1979-11-01), Muller

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