US PATENT SUBCLASS 521 / 906
POLYURETHANE CELLULAR PRODUCT CONTAINING UNREACTED FLAME-RETARDANT MATERIAL
Current as of:
June, 1999
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521 /
HD
SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES
906
POLYURETHANE CELLULAR PRODUCT CONTAINING UNREACTED FLAME-RETARDANT MATERIAL
DEFINITION
Classification: 521/906
POLYURETHANE CELLULAR PRODUCT CONTAINING UNREACTED
FLAME-RETARDANT MATERIAL:
Subject matter involving a cellular polyurethane polymer having incorporated therein a nonreactive material which enhances the ability of the polyurethane to withstand combustion or the effects of fire.
