초록 ▼

Composite cellulose containing materials which are waterproof and biodegradable are produced which consist essentially of cellulose and hydrophobic polymer-based composition in the amount about 4 to 40 wt %. The polymer-based composition comprises first polymer, which is partially saponified polyvin

Composite cellulose containing materials which are waterproof and biodegradable are produced which consist essentially of cellulose and hydrophobic polymer-based composition in the amount about 4 to 40 wt %. The polymer-based composition comprises first polymer, which is partially saponified polyvinyl acetate, second polymer, which functions as plasticizer for improving elasticity of the first polymer and cross-linking agent, which is capable to cross-link the first polymer. The polymer-based composition may additionally contain environmentally friendly hydrophobizators, fillers and pigments.

대표청구항 ▼

[ We claim:] [1.]1. A composite material comprising a cellulose component and a polymer-based component, wherein said polymer-based component is formed using a mixture of:a) a first polymer comprising polyvinyl acetate latex which contains 2-8 wt. % free hydroxyl groups;b) a second polymer comprisin

[ We claim:] [1.]1. A composite material comprising a cellulose component and a polymer-based component, wherein said polymer-based component is formed using a mixture of:a) a first polymer comprising polyvinyl acetate latex which contains 2-8 wt. % free hydroxyl groups;b) a second polymer comprising a non cross-linked latex selected from the group consisting of poly-(C.sub.2 -C.sub.4)-alkylacrylates, copolymers of vinyl with (C.sub.2 -C.sub.4)-alkylacrylate and -copolymers of (C.sub.2 -C.sub.4)-alkylacrylate with (C.sub.2 -C.sub.4)-alkylmethacrylate, said second polymer providing improved elasticity to the first polymer upon adding the second polymer thereto; andd) a cross-linking agent.