US PATENT SUBCLASS 521 / 75
.~.~.~ System contains two or more solid polymers or contains at least one solid polymer and at least one polymer-forming system

Current as of: June, 1999
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521 /   HD   SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {3}
50  DF  .~ CELLULAR PRODUCTS OR PROCESSES OF PREPARING A CELLULAR PRODUCT, E.G., FOAMS, PORES, CHANNELS, ETC. {27}
73  DF  .~.~ Process of preparing a cellular product of a plastisol of a solid polymer derived solely from ethylenically unsaturated monomers; forming a plastisol of a solid polymer derived solely from an ethylenically unsaturated monomer which is designed to be formed into a cellular product, or composition thereof {2}
75.~.~.~ System contains two or more solid polymers or contains at least one solid polymer and at least one polymer-forming system

DEFINITION

Classification: 521/75

System contains two or more solid polymers or contains at least one solid polymer and at least one polymer-forming system:

(under subclass 73) Subject matter wherein the plastisol composition contains at least two solid polymers, or at least one solid polymer and at least one additional solid polymer-forming system.