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Class 521/171 - -XH reactant contains a halogen atom


Subclass of Class 521 - Synthetic resins or natural rubbers -- part of the class 520 series
Definition: Subject matter wherein the -XH (X is a chalcogen) reactant
No. of patents: 79
Last issue date: 06/13/2006


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NumberTitleIssue Date
7060140Self-healing tribological surfaces
A self-healing tribological surface comprises a shape memory material. The self-healing tribological surface can be used for recovering a scratches and/or indentations in the surface. Processes for recovering scratches or indentations generally comprises forming a s...
06/13/2006
6887913Method for producing a rigid foamed synthetic resin
A method for producing a rigid foamed synthetic resin, which comprises reacting a polyol with a polyisocyanate compound in the presence of water, a catalyst and a fluorine-containing compound of the formula 1: Rf—O-(A-O)n—R  F...
05/03/2005
6653361Flame retardant polyurethane composition and method of manufacture thereof
A polyurethane foam or elastomer comprises an organic polyisocyanate component, an active hydrogen-containing component reactive with the polyisocyanate component, wherein the viscosity of this component is less than about 500 cP at room temperature, a ca...
11/25/2003
6100359Ablative polyurea foam and prepolymer
The present invention relates to an ablative fire resistant hydrophilic polyurea foam made from low molecular weight polyols capped with an isocyanate, with the polyol mixture including a fire retardant polyol that preferably includes carborane disilanol,...
08/08/2000
6086784Premixes for the preparation of polyurethane or polyisocyanurate foams
Premixes intended for the preparation of polyurethane or polyisocyanurate foams comprising at least one polyol, at least one hydrofluoroalkane corresponding to the general formula CF3 --CR1 R2 --CF2 --R3
07/11/2000
5889286Premixes for the preparation of polyurethane or polyisocyanurate foams
Premixes intended for the preparation of polyurethane or polyisocyanurate foams comprising at least one polyol, at least one hydrofluoroalkane corresponding to the general formula CF3 --CR1 R2 --CF2 --R3
03/30/1999
5618854Combustion-modified flexible polyurethane foams
Disclosed is an active hydrogen-containing composition suitable for the production of flexible polyurethane foam when reacted with a polyisocyanate, said composition comprising, (a) a polyol having an average functionality of about 2.0 to about 4.0, and a...
04/08/1997
5444100Method for the mixing of low-boiling foaming agent
A method for the mixing of a polyol with a low-boiling foaming agent for the manufacture of a rigid foamed polyurethane. The polyol is blended in advance with a specific amount of the low-boiling foaming agent such as chlorodifluoromethane (designated by ...
08/22/1995
5397810Polyol, polyurethane resin and utilization thereof
The present invention relates to a novel polyol obtained by using a specified polyhydric alcohol, polyoxyalkylene polyol, aliphatic amine and/or alkamlamine as a raw material and adding an organic polycarboxylic acid or its anhydride and an alkylene oxide...
03/14/1995
5250581Polymer polyols containing halogenated aromatic monomers
Novel polymer polyols based on halogenated aromatic monomers such as tribromostyrene give polyurethane foams with improved flame retardant properties. For example, replacing conventional SAN polymer polyols with tribromostyrene (TBS)/acrylonitrile polymer...
10/05/1993
5246978Polyol and rigid polyurethane foam
The present invention relates to a polyol, polyurethane resin, rigid polyurethane foam, preparation process thereof and a preparation process of a rigid polyurethane foam composite. The polyol comprises an epoxy resin based polyol, which may be combined w...
09/21/1993
5198475Polyol and utilization thereof
A polyurethane resin, rigid polyurethane foam and composite thereof prepared by using a polyol comprising a phenol resin base polyol mixed with an aminophenol base polyol or a polyphenylpolyxylylenepolyamine base polyol or a polymethylenepolyphenylpolyami...
03/30/1993
4990545Articles with polyurethane resin having memory shape characteristics and method of utilizing same
A thermoplastic or thermoset article, a porous sheet, a paint composition, and a synthetic leather which are characterized with a memory shape or a healable characteristics comprising a polyurethane resin obtained by reacting a polyisocyanate and aromatic...
02/05/1991
4814360High resiliency molded foam consisting of the reaction product of a polyisocyanate, a polyoxyalkylene polyether polyol, water and a halogenated monohydric alcohol
High resiliency polyurethane foams are typically prepared by reaction of polyols blends comprising conventional and polymer containing polyols with aromatic polyisocyanates. Improved physical properties such as tensile strength, tear strength, and elongat...
03/21/1989
4803230Polyols-polyesters and use thereof in the production of polyurethane foams
Halogen- and/or phosphorus-containing polyols-polyesters obtained by esterification and transesterification of the residues from the process for producing dimethyl terephthalate with a polyol at least 5% by weight of which is constituted by a glycol havin...
02/07/1989
4797429Bromine-containing polyols
New Mannich bases of the formula ##STR1## wherein each of R1 and R2, independently, represents a hydroxyalkyl radical, and to oxyalkylation derivatives of the formula ##STR2## wherein each of a, b and c represents zero or a...
01/10/1989
4734443Polyurethanes with mono-ol/diol haloneocarbyl polyethers and their esters
Included are mondiol haloneocarbyl polyethers and their esters incorporated in polyurethane foams. The compositions have haloneocarbyl moieties, and in general, the polyethers before the incorporation in the polyurethanes contain from one to two hydroxy m...
03/29/1988
4714720Brominated polyetherpolyols, process for their preparation and the use of brominated polyetherpolyols in the manufacture of rigid polyurethane foams
Polyetherpolyols corresponding to the general formula: ##STR1## in which: Y denotes oxyalkylene radicals derived from alkene oxides, m denotes a number such that 1ࣘmࣘ2 and n1 and n2 denote numbers such that 2ࣘ(n1 +n
12/22/1987
4668710Trihalovinyl polyol ethers
Included are trihalovinyl polyol ethers. The compositions have pendant 1,2,2-trihaloethenyl moieties. The compositions may be low viscosity oils or highly polymeric such as incorporated with a urethane or other polymers. One of the uses of the composition...
05/26/1987
4621104Process for the production of liquid bromine-containing alkoxylation products
Liquid bromine-containing alkoxylation products of butyne-(1,4)-diol which are storage stable are produced. More specifically, 1.5 to 2.5 mols alkylene oxide are reacted with each mol of butyne-(1,4)-diol present at elevated temperature in the presence of...
11/04/1986
4564468Flame retardant for polyurethanes
A reactive fire retardant mixture useful in the preparation of polyurethane foams. The mixture contains a halogenated imide-containing polyol having the formula: ##STR1## and the corresponding ether having the formula: ##STR2## wherein R is...
01/14/1986
4511688Flame retardant for use in rigid polyurethane foams
Novel flame retardant compositions, which are useful in the preparation of rigid polyurethane foams, comprise a sucrose polyol, an aromatic polyester polyol, and a brominated, hydroxyl-containing pentaerythritol....
04/16/1985
4486551Method of preparing a flame retarded polyurethane using a flame retarded halogenated polyol
A flame retardant, halogenated polyol having the formula ##STR1## wherein R is an aliphatic radical substituted with at least 2 hydroxyl groups, X is a halogen, and X' is a halogen or hydrogen, is used in the reaction mixture for preparing flame reta...
12/04/1984
4468482Flame retarded polyisocyanurate foam made from polyol derived from halogen containing dicarboxylic acid anhydride
A flame retardant polyurethane-modified polyisocyanurate foam composition containing a flame retardant amount of a normally liquid flame retardant polyol ester. The polyol ester is prepared by a process comprising reacting a halogen containing anhydride o...
08/28/1984
4468481Flame retardant polyurethane modified polyisocyanurate
A flame retardant polyurethane-modified polyisocyanurate foam composition containing a flame retardant amount of a normally liquid flame retardant polyol ester. The polyol ester is prepared by a process comprising reacting a halogen containing anhydride o...
08/28/1984
4468480Ester and halogen containing polyols
A normally liquid, flame retardant polyol ester prepared by a process comprising reacting a halogen containing anhydride of a dicarboxylic acid or a mixture of said anhydrides with an aliphatic polyol having at least three hydroxy groups and an aliphatic ...
08/28/1984
4468479Ester and halogen containing polyols
A normally liquid flame retardant polyol ester prepared by a process comprising reacting a halogen containing anhydride of a dicarboxylic acid or a mixture of said anhydrides with about 2-10 moles of an aliphatic diol or mixture of diols per mole of said ...
08/28/1984
4458036Flexible polyurethane foams containing glycoluril reaction products for a flame and ember drip retardance
Polyurethane foams prepared from the reaction of polyester polyol with organic isocyanate have improved flame retardance and dripping ember retardance by incorporation of an additive comprising (1) halogenated flame retardant, and (2) organic solvent solu...
07/03/1984
4451587Polyurethane foam and its production
A polyurethane foam produced by the reaction of a polyisocyanate and a polyether polyol in the presence of a catalyst, a cell regulating agent and water as a blowing agent, the polyether polyol of which consists of a halogenated polyether polyol (I) of th...
05/29/1984
4407981Flame retardant mixture for polyurethanes
A composition comprises polyurethane, a two-component flame retardant system consisting of an additive first flame retardant containing organophosphorus, and a second flame retardant containing organochlorine or organobromine. The composition of the inven...
10/04/1983
4393248Flame retarded halogenated polyol
A flame retardant, halogenated polyol having the formula ##STR1## wherein R is an aliphatic radical substituted with at least 1 hydroxyl groups, X is a halogen, and X' is a halogen or hydrogen, is used in the reaction mixture for preparing flame reta...
07/12/1983
4363882Method for producing flame retardant flexible polyurethane foams with blends of dibromoneopentyl glycol and flame retardant plasticizer
This invention is directed to a process for producing flame retardant flexible polyurethane foams having a porosity generally in the range between 0.5 and 10 cubic feet per minute. A polyol having an average molecular weight between about 250 and about 6,...
12/14/1982
4318999Low fire hazard rigid urethane insulation foam, polyol mixtures used in the manufacture thereof, and method for manufacture thereof
A low fire hazard rigid urethane insulation foam having high compressive strength and low friability is disclosed. Rigid foam products of this invention have a Class I flame hazard rating according to the ASTM E-84 Steiner tunnel test. The urethane foam c...
03/09/1982
4307205Polyester polyols
The reaction products of bisphenol-A and phthalic anhydride or the brominated derivatives thereof a glycol and/or propylene glycol is employed to produce low flame spread urethane-modified isocyanurate foams....
12/22/1981
4302272Process for heat sealing polyurethane foam
The instant invention is directed to a process for heat sealing flexible polyurethane foam, comprising: A. reacting and foaming a polyurethane foam produced by the steps comprising reacting: (I) an organic polyisocyanate; (II) a polyol having a molecular weigh...
11/24/1981
4282332Polyols derived from 4,4,4-trichloro-1,2-epoxybutane and/or epihalohydrin for use in the production of heat sealable foams
The instant invention is directed to a polyol having a molecular weight of 2,000 to 8,000 which is especially suited for use in the production of heat sealable foams, comprising the adduct obtained by sequentially reacting: (a) a polyhydroxyl initiator, w...
08/04/1981
4275171Method for producing flame retardant flexible polyurethane foams with blends of dibromoneopentyl glycol and flame retardant plasticizer
This invention is directed to a process for producing flame retardant flexible polyurethane foams having a porosity in the range between 0.5 and 10 cubic feet per minute. A polyol having an average molecular weight between about 250 and about 6,500 is rea...
06/23/1981
4264745Fire-retardant polyurethane foam based on a bromine-containing polyester
A polyol is produced as the reaction product of dibromonepentyl glycol and tetrabromophthalic anhydride with defined alkyoxides. This polyol can be used to produce a insulating foam having flame retardant properties....
04/28/1981
4260514Urethane foam compositions
A polyurethane foamable composition comprising a brominated diol and three polyols is disclosed. The resulting foam formed by reacting these polyols and a diol with an isocyanate has a flame spread of 25 or less and contains a smaller quantity of halogen ...
04/07/1981
4239642Stabilization of halogenated polyols for polyurethane production
The storage stability of otherwise unstable premix compositions for flame retardant rigid polyurethane foams containing in the premix a chlorinated polyether polyol and a tertiary amine catalyst, is enhanced by incorporation into the premix of a minor amo...
12/16/1980
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