Back to results
US 4,168,251 AGranted
Plastic-wood powder mixture for making insulating material for the electrical industry
AssigneeRehau Plastiks AG & Co.
InventorsHartmut Schinzel, Ernst Wunderlich
Life of this patent
Estimating the term…
Abstract
A method of forming an electrically insulating material having good mechanical properties by mixing a polyvinyl chloride polymer with a natural cellulose material in an amount of from 25 to 30% by weight to form a substantially homogeneous mixture consisting essentially of the polyvinyl chloride and natural cellulose material.
Claims5
A composition suitable for making an electrical insulator consisting essentially of substantially homogeneous mixture of a polymer containing at least 80% polyvinyl chloride, with a natural cellulose material;
- said natural cellulose material being from 25 to 30 percent by weight of the polyvinyl chloride and natural cellulose material, and having a particle size of less than 500.mu..
Dependencies are inferred from the claim text.