US PATENT SUBCLASS 524 / 452
.~.~.~.~.~ Asbestos DNRM


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

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {1}
*  DD  .~ PROCESSES OF PREPARING A DESIRED OR INTENTIONAL COMPOSITION OF AT LEAST ONE NONREACTANT MATERIAL AND AT LEAST ONE SOLID POLYMER OR SPECIFIED INTERMEDIATE CONDENSATION PRODUCT, OR PRODUCT THEREOF (Class 523, subclass 1) {17}
1  DF  .~.~ Adding a NRM to a preformed solid polymer or preformed specified intermediate condensation product, composition thereof; or process of treating or composition thereof {31}
80  DF  .~.~.~ DNRM which is other than silicon dioxide, glass, titanium dioxide, water, halohydrocarbon, hydrocarbon, or elemental carbon {4}
442  DF  .~.~.~.~ Soil or inorganic silicon DNRM (other than silicon dioxide, glass, quartz, novaculite, or silicon dioxide type) {5}
452.~.~.~.~.~ Asbestos DNRM {3}
453  DF  .~.~.~.~.~.~> Aldehyde-nitrogen SICP or solid polymer thereof
454  DF  .~.~.~.~.~.~> SICP or solid polymer thereof
455  DF  .~.~.~.~.~.~> Halogen containing polymer


DEFINITION

Classification: 524/452

Asbestos DNRM:

(under subclass 442) Subject matter wherein the inorganic silicon material is asbestos.

(1) Note. Asbestos is a group of impure magnesium silicate minerals which occur in fibrous form. Included within the term asbestos are amianthus, earth flax, mountain cork, stone flax, fibrous actinolite, amphibole, and chrysolite.

(2) Note. Serpentine asbestos is the mineral chrysotile.

(3) Note. Amphibole asbestos includes the minerals: tremolite, actinolite, amosite, crocidolite, and anthophyllite.