(under subclass 1) Processes which include the purification, recovery and/or liberation of mineral fibers.
SEE OR SEARCH THIS CLASS, SUBCLASS:
145, and 152+, for processes of waterlaying products
depositing fibrous products from a liquid suspension which includes mineral fibers, and the resulting products.
SEE OR SEARCH CLASS
65, Glass Manufacturing,
376+, for a process of making glass fibers or mineral wool. 156, Adhesive Bonding and Miscellaneous Chemical Manufacture,
62.2+, for laminating processes in which at least one lamina, e.g., a batt, is formed by bulk deposition of discrete particles.
264, Plastic and Nonmetallic Article Shaping or Treating: Processes,
109+, for processes under the class definition for forming articles by uniting randomly associated particles, not containing free metal particles, particularly subclass 110 providing for mica particles.
423, Chemistry of Inorganic Compounds,
326+, for the chemical preparation of silicates not combined with a fiber liberation step; see also line note to Class 162 in definition of Class 423, Lines With Other Classes and Within This Class.
