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Class Information
Number: 521/103
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. > Cellular product formation prior to or during solid polymer formation in the presence of a stated ingredient other than water > Ingredient contains a boron atom
Description: Subject matter wherein the stated ingredient contains a boron atom.


Sub-classes under this class:

Class Number Class Name Patents
521/105 Boron atom is part of an organic compound 44
521/104 Boron trihalide or complex thereof 7


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
6967223 Fiber-free shaped parts Nov. 22, 2005
6783701 Electrically conductive foam component Aug. 31, 2004
6610756 Inorganic/organic composite foam and process for producing the same Aug. 26, 2003
6294589 Polyurethane composition containing antimicrobial agents and methods for use therefor Sep. 25, 2001
6169124 Inner parting agents for producing self-parting moldings made of polyisocyanate polyaddition products Jan. 2, 2001
6140380 Blowing agent and method for producing foamed polymers and related compositions Oct. 31, 2000
6010565 Foamed material for fireproofing and/or insulating Jan. 4, 2000
5973015 Flexible aerogel composite for mechanical stability and process of fabrication Oct. 26, 1999
5726214 Self-foaming fluoropolymer composition Mar. 10, 1998
5721281 Flame retardant porous plastics Feb. 24, 1998
5639800 Production of flame resistant, halogen-free polyurethane/polyureas Jun. 17, 1997
5556891 Prepolymers containing isocyanate groups Sep. 17, 1996
5539007 Catalyst compositions for making polyurethane based on imidazoles and boron compounds Jul. 23, 1996
5391583 Flame-retardant poly (polyisocyanate-organic phosphorus) products Feb. 21, 1995
5373028 Polyurethane foams having reduced visible emissions during curing Dec. 13, 1994
5356942 Hydroxyl group-containing amine-boron adducts as reduced odor catalyst compositions for the production of polyurethanes Oct. 18, 1994
5268393 Flame-retardant polyurethane foam produced without additional blowing agents Dec. 7, 1993
5177046 Amine-boron adducts as reduced odor catalyst compositions for the production of polyurethanes Jan. 5, 1993
5173515 Fire retardant foams comprising expandable graphite, amine salts and phosphorous polyols Dec. 22, 1992
5166223 Hydroxyl group-containing amine-boron adducts are reduced odor catalyst compositions for the production of polyurethanes Nov. 24, 1992
5162379 Amine-boron adducts as reduced odor catalyst compositions for the production of polyurethanes Nov. 10, 1992
5118721 Dispersion polymer polyols Jun. 2, 1992
5110834 Production of chlorofluorocarbon-free urethane-containing soft-elastic moldings having a cellular core and a compacted peripheral zone May. 5, 1992
5096623 Process and composition for producing flame retardant rebonded foam products Mar. 17, 1992
5086081 Amine-boron adducts as reduced odor catalyst compositions for the production of polyurethanes Feb. 4, 1992
5075343 Flame-retardant polyurethane foam utilizing boric acid Dec. 24, 1991
5075414 Resorcinol-modified phenolic resin binder for reinforced plastics Dec. 24, 1991
5075413 Resorcinol-modified phenolic resin binder for reinforced plastics Dec. 24, 1991
5057545 Fire retardant foam materials Oct. 15, 1991
5039711 Production of flame-retardant polyol-oxidated silicon-acidic boron emulsion Aug. 13, 1991
4999383 Process for the production of flame-retardant polyurethane products Mar. 12, 1991
4968724 Hydrated salt systems for controlled release of water in polyurethane foams Nov. 6, 1990
4966920 Smoke and toxic gas suppressant composition Oct. 30, 1990
4940737 Chemically modified hydrophilic prepolymers and polymers Jul. 10, 1990
4895878 Flexible polyurethane foam having a high fire resistance Jan. 23, 1990
4857560 Reaction products useful as catalysts in the production of isocyanate-based plastics Aug. 15, 1989
4831062 Preparation of intumescent materials for coatings and building elements May. 16, 1989
4820576 Fire retardant polymer resin Apr. 11, 1989
4738988 Non-settling foams Apr. 19, 1988
4731389 Foam insulation and process for producing the same Mar. 15, 1988
4698369 Flexible, flame-retardant polyurethane foams Oct. 6, 1987
4686240 Process for producing polyurethane foams using foam modifiers Aug. 11, 1987
4640934 Process for the preparation of cellular products and laminates based on furan prepolymers Feb. 3, 1987
4596835 Reinforced cellular or noncellular polyurethane molded parts Jun. 24, 1986
4551483 Fire-retardant polyurethane foam containing finely ground dry fire-retardant particles containing a volatile active fire-retardant componet Nov. 5, 1985
4550124 Blowing agents and their use in preparations of polyester foams Oct. 29, 1985
4532261 Filler system for a non-flammable rigid foam and use of the rigid foam as a building material Jul. 30, 1985
4530777 Polyurethane foams and processes for preparation Jul. 23, 1985
4521543 Non-flammable rigid foam and its use as a building material Jun. 4, 1985
4507406 Blowing agents and their use in preparations of polyester foams Mar. 26, 1985

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