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Class Information
Number: 442/160
Name: Fabric (woven, knitted, or nonwoven textile or cloth, etc.) > Coated or impregnated woven, knit, or nonwoven fabric which is not (a) associated with another preformed layer or fiber layer or, (b) with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer > Coated or impregnated natural fiber fabric (e.g., cotton, wool, silk, linen, etc.) > Coated or impregnated cellulosic fiber fabric > Coating or impregnation contains aldehyde or ketone condensation product
Description: Subject matter wherein the coating or impregnation comprises a product resulting from the condensation of an aldehyde or a ketone.

Sub-classes under this class:

Class Number Class Name Patents
442/163 Amide-aldehyde condensate (e.g., modified urea-aldehyde condensate, etc.) 12
442/162 Melamine-aldehyde condensate 5
442/161 Phenol-aldehyde condensate 14

Patents under this class:

Patent Number Title Of Patent Date Issued
7989367 Reducing formaldehyde emissions from fiberglass insulation Aug. 2, 2011
7272915 Shingle and mat tensile strength with urea formaldehyde resin modifier Sep. 25, 2007
7214633 Polyvinylamine treatments to improve dyeing of cellulosic materials May. 8, 2007
6993876 Asphalt roofing composite including adhesion modifier-treated glass fiber mat Feb. 7, 2006
6936083 Treated backing and method of making the same Aug. 30, 2005
6851240 Shingle tear strength with fiber mixture of different fibers Feb. 8, 2005
6817152 Fiber mats for materials of construction having improved tear strength and process for making same Nov. 16, 2004
6737369 Cured non-woven mat of a mixture of fibers May. 18, 2004
6544911 Fiber mats for materials of construction having improved tear strength and process for making same Apr. 8, 2003
6300259 Crosslinkable cellulosic fibrous product Oct. 9, 2001
6084021 Modified urea-formaldehyde binder for making fiber mats Jul. 4, 2000
6001925 Melamine-formaldehyde resins modified with dicyandiamide and sorbitol for impregnation of substrates for post-formable decorative laminates Dec. 14, 1999
4795674 Method for treating a fabric and fabric treated thereby Jan. 3, 1989
4343403 Polyvinyl acetate latex impregnated towelette Aug. 10, 1982

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