US PATENT SUBCLASS 428 / 508
.~.~.~ Regenerated or modified cellulose


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



428 /   HD   STOCK MATERIAL OR MISCELLANEOUS ARTICLES

411.1  DF  COMPOSITE (NONSTRUCTURAL LAMINATE) {25}
500  DF  .~ Of addition polymer from unsaturated monomers {6}
507  DF  .~.~ Next to cellulosic {2}
508.~.~.~ Regenerated or modified cellulose {2}
509  DF  .~.~.~.~> Addition polymer of hydrocarbon(s) only
510  DF  .~.~.~.~> Where addition polymer is an ester or halide


DEFINITION

Classification: 428/508

(under subclass 507) Product in which the cellulosic material is chemically modified (e.g., esterified, etc.) or precipitated from a solution (i.e., regenerated).

(1) Note. Examples of modified or regenerated cellulose are: viscose*, cellophane*, cellulose*, acetate, cellulose* nitrate and pryoxylin*.