U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Did You Know...

...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 525/265 - Aromatic or cycloaliphatic peroxy compound


Subclass of Class 525 - Synthetic resins or natural rubbers -- part of the class 520 series
Definition: Subject matter wherein the peroxy group is part of an aromatic
No. of patents: 173
Last issue date: 10/02/2007


1          
NumberTitleIssue Date
7276560Solid golf ball
The present invention provides a solid golf ball comprising a hot-molded product of a rubber composition comprising (a) 100 parts by weight of a polybutadiene synthesized using a rare-earth catalyst and having a cis-1,4 content of at least 60% and a 1,2 vinyl conten...
10/02/2007
7230053Golf ball
A golf ball, typically its core, is manufactured by molding and vulcanizing a rubber composition comprising a base rubber, an unsaturated carboxylic acid or a metal salt thereof, an inorganic filler, an organic peroxide, and an organosulfur compound. The base rubber...
06/12/2007
7183357Golf ball
A golf ball has a core obtained by molding and vulcanizing a rubber composition comprising (A) a base rubber which includes a polybutadiene having a cis-1,4 content of at least 60 wt %, (B) an unsaturated carboxylic acid and/or metal salt thereof, (C) an inorganic f...
02/27/2007
7152374Composite extrusion for trim seal strip and method for forming same
A composite extrusion for an automotive seal strip is formed of an extruded body, and a veneer extruded onto the body. The extruded body is composed of ethylene-propylene diene rubber compound. The veneer is composed of a polymer blend that includes the reaction pro...
12/26/2006
7132485Dosing of peroxide to a suspension process wherein styrene is polymerized
The invention relates to a suspension polymerization process for the preparation of styrene-containing (co)polymers, wherein the process comprises the steps of continuously or semi-continuously dosing an initiator to the reaction mixture, said initiator having a spe...
11/07/2006
7074859Golf ball
A golf ball is characterized by comprising a molded and vulcanized product of a rubber composition as a constituent component, the rubber composition comprising 100 pbw of a base rubber including 60–100 wt % of a polybutadiene containing at least 60 wt % of cis-1,...
07/11/2006
7041733Controlling particle size in HIPS using metal carboxylates
It has been discovered that certain compounds serve as particle size regulators when employed together with peroxide initiators for the polymerization of vinylaromatic monomers in the presence of diene polymers. Suitable compounds that can control particle size incl...
05/09/2006
7026407Process for producing modified polyolefin resin
There is provided a process for producing a modified polyolefin resin, which comprises the step of melt kneading at least the following components (A), (B) and (C): (A) 100 parts by weight of a polyolefin resin, (B...
04/11/2006
6951904Process for increasing the melt strength of polypropylene
A process for modifying a polypropylene (co)polymer wherein said process comprises melt mixing the polypropylene (co)polymer in the presence of an initiator wherein said initiator is selected from the group defined by formula (1), wherein R is selected from the grou...
10/04/2005
6943208Golf ball
A golf ball is characterized by comprising a molded and vulcanized product of a rubber composition as a constituent component, the rubber composition comprising 100 pbw of a base rubber composed primarily of a polybutadiene containing at least 60 wt % of cis-1,4-bon...
09/13/2005
6911498Composition for vulcanizing fluororubbers and fluororubber moldings
A curing composition of a fluororubber comprising a fluororubber which is curable with an organic peroxide, for example, an iodine-containing fluororubber, a polyfunctional unsaturated compound, and an organic peroxide, for example, dicumyl peroxide, in which the to...
06/28/2005
6583250Polyolefine materials with improved adhesivity
The bondability of a polyolefin, particularly to cyanoacrylate adhesives, is improved by incorporating in the polyolefin a polymerization initiator capable of initiating the polymerization of the monomers constituting the cyanoacrylate adhesive. The polym...
06/24/2003
6437049Process for modifying polypropylene with maleic anhydride
Process for the preparation of modified polypropylene which can be used as compatibilizing agent, consisting in reacting the polymer with maleic anhydride in the presence of dilaurylperoxide and in the absence of a solvent....
08/20/2002
6380316Polyisobutylene copolymers having reactive silyl grafts
A copolymer of isobutylene with 0.5 to 15 mole percent of a conjugated diene (i.e., a butyl rubber) is reacted with a silane having both an alkenyl group as well as at least two silicon-bonded hydrolyzable group, the reaction taking place in the presence ...
04/30/2002
6316548(Meth)acrylic premix, (meth)acrylic SMC or BMC, and process producing (meth)acrylic artificial marble
A (meth)acrylic premix comprising a (meth)acrylic resin composition (A) containing a (meth)acrylic monomer (a) and a (meth)acrylic polymer (b), an inorganic filler (B), and a curing agent (C), wherein, the component (a) is a (meth)acrylate having a bicycl...
11/13/2001
6218503Silicone-containing prepolymers
Prepolymers of Formula (I) are useful in hydrogel materials ##STR1## wherein M is a hydrophilic radical derived from at least one hydrophilic ethylenically unsaturated monomer and having a molecular weight of about 500 to 5000; each R is independently sel...
04/17/2001
6191230Polyethylene crosslinkable composition
A masterbatch composition comprising: (a) a copolymer of ethylene and 1-octene prepared with a metallocene catalyst; (b) as a scorch inhibitor, a substituted hydroquinone; 4,4'-thiobis(2-methyl-6-t-butylphenol); 4,4'-thiobis(2-t-butyl-5-methylphenol); or ...
02/20/2001
6177519Silane grafted copolymers of an isomonoolefin and a vinyl aromatic monomer
Curable silylated copolymers based on olefin copolymers comprising at least one C4 to C7 isomonoolefin and a vinyl aromatic monomer (alkyl styrene) are prepared by reacting the olefin copolymer with an olefinically unsaturated hydrol...
01/23/2001
6166146Curable resin composition, adhesive composition, bonded product, speaker and bonding method
A curable resin composition comprising (1) a polymerizable vinyl monomer, (2) a polymerization initiator, (3) an aromatic amine and/or a pyridine derivative, (4) a ଲ-diketone chelate and/or a ଲ-keto-ester, and (5) a phosphate....
12/26/2000
6087451Process for preparing polymers using bifunctional free radical reactive compounds
A polymer having groups located at the ends of the polymer chain which groups are derived from stable free radical compounds, wherein the polymer is of the formula: SFR-(R)-SFR wherein SFR represents a covalently bonded stable free radical group and R rep...
07/11/2000
6025443Process for the production of spherical polymers
Bead polymers having an average particle size of 1 to 30 μm and a narrow particle size distribution are obtained by the seed/feed process if a crosslinked polymer having a soluble fraction of less than 25 wt. % and an average particle size of 0.5 to 10 Î...
02/15/2000
5854365Toner for developing electrostatic image and method of manufacturing resin composition
The present invention relates a toner for developing electrostatic images, comprising: a resin composition, which contains a binder resin and low molecular weight wax, and a coloring agent, wherein the binder resin does not substantially contain insoluble...
12/29/1998
5773510Processes for the preparation of branched polymers
A process for the preparation of branched thermoplastic resins comprising: heating a mixture of an unsaturated resin, a free radical initiator, and a stable free radical agent; adding to the heated mixture at least on polymerizable monomer; and cooling th...
06/30/1998
5767200Optical resin materials with distributed refractive index
An optical resin, of which the refractive index continuously changes in a specific direction, is produced by filling a polymerization container with a mixed solution containing at least one type of polymerizable monomer or polymerizable monomer sol and at...
06/16/1998
5763514Process for producting optical resin materials with distributed refractive index
An optical resin, of which the refractive index continuously changes in a specific direction, is produced by filling a polymerization container with a mixed solution containing at least one type of polymerizable monomer or polymerizable monomer sol and at...
06/09/1998
5756586Vulcanizable rubber composition with unsaturated and metal compounds and organic peroxides
This invention relates to a vulcanizable rubber composition obtained by compounding, into an ethylenically unsaturated nitrile-conjugated diene copolymer rubber, a zinc compound, an ଱, ଲ-ethylenically unsaturated carboxylic acid, a compound of...
05/26/1998
5728776Process for producing graft modified polyolefins
When producing a graft modified polyolefin by melting and kneading a polyolefin, a radical-polymerizable monomer and a radical-polymerization initiator, the producing efficiency is improved. The grafting reaction is effected by feeding the melted polyolef...
03/17/1998
5723540Elastic-thermoplastic graft polymers with improved properties
Elastic-thermoplastic graft polymers manufactured by radical emulsion polymerization of resin-forming vinyl monomers in the presence of rubber present in latex form with the use of a combination of a peroxide of formula (I) ##STR1## where R...
03/03/1998
5668218Elastic-thermoplastic graft polymers with improved properties
Elastic-thermoplastic graft polymers manufactured by radical emulsion polymerisation of resin-forming vinyl monomers in the presence of rubber present in latex form with the use of a combination of a peroxide of formula (I) ##STR1## where R...
09/16/1997
5583181Process for the on-line grafting of carboxylic acids and carboxylic acid anhydrides containing an ethylenic unsaturation onto ethylene homopolymers or copolymers and installation for the implementation of this process
(I) The (co)polymerisation of ethylene is carried out in at least one reaction zone (R) under high pressure, at 150°-320° C.; (II) the reaction product is routed into a zone (S), under an intermediate pressure P, for separation of the (co)polymer, in th...
12/10/1996
5545460Methods and apparatus for preparing and delivering bone cement
Methods and apparatus are set forth for preparing and delivering bone cement from a powdered polymer component and a liquid monomer component by simultaneously injecting the powdered and liquid components, stored in separate component chambers, into an ev...
08/13/1996
5468811Hydrophilic composite polymer articles formed from a settable paste comprising a mixture of hydrophilic polymer and unsaturated monomer
Hydrophilic composite polymer articles are provided which comprise at least one hydrophilic polymer in a powder form and one or more liquid components of which at least one is hydrophilic and which can be polymerized with said hydrophilic polymer. This co...
11/21/1995
5466749Graft copolymers and graft copolymer/protein compositions
Graft copolymers comprising a poly-alpha-olefin base polymer selected from the group consisting of polyethylene, polypropylene, polystyrene, and compatible mixtures thereof, having grafted thereto an olefinic monomer. The grafted monomer is present in an ...
11/14/1995
5466747Graft copolymers and graft copolymer/protein compositions
Graft copolymers comprising a poly-alpha-olefin base polymer selected from the group consisting of polyethylene, polypropylene, polystyrene, and compatible mixtures thereof, having grafted thereto an olefinic monomer. The grafted monomer is present in an ...
11/14/1995
5406357Developer for developing electrostatic image, image forming method, image forming apparatus and apparatus unit
The present invention provides a developer which is comprised of the magnetic toner having the specific binder resin component and low-molecular weight wax and the additives of the fine silica powder, metal oxide powder and fluorine-containing fine resin ...
04/11/1995
5397842Polyolefin/segmented copolymer blend and process
A blend of a polyolefin, such as polypropylene, with a segmented copolymer containing both polyolefin segments and segments derived from greater than 20 to about 100% of a vinyl aromatic monomer is useful in applications where high melt strength is desire...
03/14/1995
5364907Graft copolymers and graft copolymer/protein compositions
Graft copolymers comprising a poly-alpha-olefin base polymer selected from the group consisting of polyethylene, polypropylene, polystyrene, and compatible mixtures thereof, having grafted thereto an olefinic monomer. The grafted monomer is present in an ...
11/15/1994
5298563Process for preparing an impact resistant resin
A process for preparing an impact resistant resin, which comprises a step of graft copolymerizing a monomer mixture comprising an aromatic vinyl monomer and a monomer copolymerizable therewith, to a butadiene rubber-like polymeric latex in the presence of...
03/29/1994
5274029Styrene polymerization process
An improved process for the polymerization of styrene is provided. The process comprises feeding styrene monomer and a mixture of peroxides, which decompose at progressively higher temperatures, into a prepolymerization vessel maintained at 200°-270° F....
12/28/1993
5266643Process for the modification of olefin polymers to form a coupling agent
The invention relates to a process for the modification of an olefin polymer to form a coupling agent by grafting it with an unsaturated acid or acid derivative in the presence of a free-radical initiator. The process comprises stages at which a) the olef...
11/30/1993
1          
 
Sign InRegister
Username  
Password   
forgot password?