US PATENT SUBCLASS 528 / 12
.~.~ Polymerizing in the pressence of a specified material other than a reactant

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

Internet Version by PATENTEC © 1999      Terms of Use


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

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {23}
10  DF  .~ FROM SILICON REACTANT HAVING AT LEAST ONE SILICON-TO-HYDROGEN OR -CARBON BOND {12}
12.~.~ Polymerizing in the pressence of a specified material other than a reactant {6}
13  DF  .~.~.~> Material is a boron-containing material
14  DF  .~.~.~> Material is a metal-containing material {5}
20  DF  .~.~.~> Material contains an alcohol, alcoholate, or ether compound
21  DF  .~.~.~> Material is a nitrogen-containing compound {1}
23  DF  .~.~.~> Material contains a phosphorus or sulfur atom
24  DF  .~.~.~> Material contains a compound having an O-O group, e.g., peroxide, etc.

DEFINITION

Classification: 528/12

(under subclass 10) Subject matter wherein a R3SiH or R3Si-CR3 reactant is polymerized in the presence of a specified material.

(1) Note. Silicones or polysiloxanes defined by the formula RnSiO wherein R is C or H are considered to be polymers and are proper for this area.

SEE OR SEARCH THIS CLASS, SUBCLASS:

33+, for organopolysiloxane used as reactants.

SEE OR SEARCH CLASS

520, Synthetic Resins or Natural Rubbers, see the Glossary for a definition of the term "specified material".