US PATENT SUBCLASS 526 / 79
.~.~.~ Adding in an incremental or sequential manner

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

Internet Version by PATENTEC © 1999      Terms of Use


526 /   HD   SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {8}
72  DF  .~ POLYMERS FROM ONLY ETHYLENIC MONOMERS OR PROCESSES OF POLYMERIZING, POLYMERIZABLE COMPOSITIONS CONTAINING ONLY ETHYLENIC MONOMERS AS REACTANTS OR PROCESSES OF PREPARING {43}
78  DF  .~.~ Adding material to an on-going polymerization reaction, said addition being other than the continuous addition of the initial charge {4}
79.~.~.~ Adding in an incremental or sequential manner {1}
80  DF  .~.~.~.~> Polymerizing in the presence of water {1}

DEFINITION

Classification: 526/79

(under subclass 78) Subject matter wherein the material is added in an incremental or sequential manner.

(1) Note. "Sequential or incremental" addition requires (1) the addition of material involving a halting interruption, or pausing in the addition of the same material followed by a resumption of addition; or (2) the addition of materials to a polymerization zone followed by the addition of material distinct from the previous materials; or (3) the addition of disproportionate amounts of material so that the addition of one is completed prior to the completion of the addition of the other material.