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Class Information
Number: 162/143
Name: Paper making and fiber liberation > Processes and products > Plural fiber containing > Animal or proteinaceous
Description: Processes and products in which one of the fibrous components is proteinaceous or are fibers of animal origin.










Sub-classes under this class:

Class Number Class Name Patents
162/144 Leather 3


Patents under this class:

Patent Number Title Of Patent Date Issued
7985855 Method for modifying fibers Jul. 26, 2011
7862684 Use of particulate material derived from mammalian hair in the preparation of paper or paperboard products Jan. 4, 2011
7655113 Mixing of a protein hydrolysate derived from keratin-containing material in the wet-end of a papermaking process Feb. 2, 2010
6187143 Process for the manufacture of hydrophobic paper or hydrophobic board, and a sizing composition Feb. 13, 2001
6133170 Low density body Oct. 17, 2000
5810970 Paper strengthened with solubilized collagen and method Sep. 22, 1998
5744002 Paper strengthened with solubilized collagen and method Apr. 28, 1998
5736010 Paper strengthened with solubilized collagen and method Apr. 7, 1998
5714042 Paper strengthened with solubilized collagen and method Feb. 3, 1998
5711853 Paper strengthened with solubilized collagen and method Jan. 27, 1998
5707491 Paper strengthened with solubilized collagen and method Jan. 13, 1998
5700354 Paper strengthened with solubilized collagen and method Dec. 23, 1997
5700353 Paper strengthened with solubilized collagen and method Dec. 23, 1997
5686262 Recycle process for the production of low-cost soluble collagen Nov. 11, 1997
5647957 Method of preparing paper strengthened with solubilized collagen Jul. 15, 1997
4906521 Non-woven fibre product Mar. 6, 1990
4166758 Method for the production of a matted transparent paper and the product thereof Sep. 4, 1979
3947316 Method of preparing the backer for the manufacture of man-made leather Mar. 30, 1976











 
 
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