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Class Information
Number: 521/78
Name: Synthetic resins or natural rubbers -- part of the class 520 series > Synthetic resins (class 520, subclass 1) > Cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. > Preparing a cellular product by spraying a solid polymer containing material
Description: Subject matter drawn to processes of cell formation wherein cell formation is achieved or initiated by a step of projecting into a gaseous atmosphere in a manner whereby temporary or permanent solid or liquid particles are formed (1) a solid polymer in liquid state (e.g., molten, dissolved, etc.), or (2) solid polymer-forming materials.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7427321 |
Foamed fireproofing composition and method |
Sep. 23, 2008 |
| 6878752 |
Method for making one-container rigid foam |
Apr. 12, 2005 |
| 6797051 |
More controllable fibrous patch spray |
Sep. 28, 2004 |
| 6780230 |
Foamed fireproofing composition and method |
Aug. 24, 2004 |
| 6723761 |
Microcellular foaming |
Apr. 20, 2004 |
| 6610754 |
Novolac-epoxy resin foam, foamable composition for making novolac-epoxy resin foam and method of making novolac-epoxy resin foam |
Aug. 26, 2003 |
| 6492436 |
Tire sealer and inflating composition and method of use |
Dec. 10, 2002 |
| 6428844 |
Reduction of microfoam in a spray-applied waterborne composition |
Aug. 6, 2002 |
| 6414044 |
Foamed caulk and sealant compounds |
Jul. 2, 2002 |
| 6395794 |
Stable, foamed caulk and sealant compounds and methods of use thereof |
May. 28, 2002 |
| 6376566 |
Agricultural foam marker compositions and use thereof |
Apr. 23, 2002 |
| 6369122 |
Agricultural foam marker compositions and use thereof |
Apr. 9, 2002 |
| 6355698 |
Substantially anhydrous foaming agent and process for producing the same |
Mar. 12, 2002 |
| 6333365 |
Stable, foamed caulk and sealant compounds and methods of use thereof |
Dec. 25, 2001 |
| 6303665 |
Spray-resistant aqueous foam, its production and use |
Oct. 16, 2001 |
| 6291536 |
Foamed caulk and sealant compounds |
Sep. 18, 2001 |
| 6284077 |
Stable, foamed caulk and sealant compounds and methods of use thereof |
Sep. 4, 2001 |
| 6214895 |
Method for making a polyvinyl acetal sponge packing for use in the nasal, sinus and otic cavities |
Apr. 10, 2001 |
| 6194479 |
"Latex foam" |
Feb. 27, 2001 |
| 6093750 |
Expandable thermoplastic polymer particles and method for making same |
Jul. 25, 2000 |
| 6011076 |
Latex foam |
Jan. 4, 2000 |
| 5977195 |
Expandable thermoplastic polymer particles and method for making same |
Nov. 2, 1999 |
| 5977196 |
Sealer and inflator composition |
Nov. 2, 1999 |
| 5905097 |
High-strength breathable films of block copolymer lattices |
May. 18, 1999 |
| 5756555 |
Acoustically active plastisols |
May. 26, 1998 |
| 5750583 |
Process for the production of molded polyurethane products |
May. 12, 1998 |
| 5693684 |
Sprayable, foam-forming, phenolic resin compostion, method of spraying a foam-forming, phenolic resin composition, and a sprayed foam |
Dec. 2, 1997 |
| 5648406 |
Tire sealant and inflator |
Jul. 15, 1997 |
| 5646196 |
C.sub.3 to C.sub.5 polyfluorcalkanes propellants |
Jul. 8, 1997 |
| 5629364 |
Coating composition |
May. 13, 1997 |
| 5624970 |
C.sub.3 to C.sub.5 polyfluorcalkanes propellants |
Apr. 29, 1997 |
| 5589520 |
Acrylonitrile polymer composition and articles and methods for their preparation |
Dec. 31, 1996 |
| 5548004 |
Method of preparing coating materials |
Aug. 20, 1996 |
| 5532281 |
Methods and apparatus for producing a composition material and products of the methods and apparatus |
Jul. 2, 1996 |
| 5520961 |
Plastisol-based coating composition |
May. 28, 1996 |
| 5514724 |
Dimensionally stable closed cell rigid polyisocyanate based foam prepared from a froth foaming mixture |
May. 7, 1996 |
| 5505344 |
Acoustic ceiling patch spray |
Apr. 9, 1996 |
| 5496867 |
C.sub.3 to C.sub.5 polyfluoroalkanes propellants |
Mar. 5, 1996 |
| 5496866 |
C.sub.3 to C.sub.5 polyfluoroalkanes propellants |
Mar. 5, 1996 |
| 5476879 |
Acoustic ceiling patch spray |
Dec. 19, 1995 |
| 5434192 |
High-stability foams for long-term suppression of hydrocarbon vapors |
Jul. 18, 1995 |
| 5434205 |
Acrylonitrile polymer compositions and articles and methods for their preparation |
Jul. 18, 1995 |
| 5409961 |
Rigid closed cell polyisocyanate based foams for use as positive flotation materials in watercraft |
Apr. 25, 1995 |
| 5399597 |
Method of preparing coating materials |
Mar. 21, 1995 |
| 5393794 |
Insulation material and method using fly ash |
Feb. 28, 1995 |
| 5374486 |
Storage stable isocyanate-reactive compositions for use in flame-retardant systems |
Dec. 20, 1994 |
| 5360832 |
Hollow particles of crosslinked melamine resin having a uniform particle diameter and a process for producing the same |
Nov. 1, 1994 |
| 5341970 |
Acoustic ceiling patch spray |
Aug. 30, 1994 |
| 5338776 |
Tire sealer and inflator |
Aug. 16, 1994 |
| 5334655 |
Method for reducing microfoam in a spray-applied waterborne composition |
Aug. 2, 1994 |
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