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

Icon_funbox Bizarre Patents

Patent No. 5508049

Pizza Pie With Concentric Rings of Crust

A pizza mold for forming a plurality of concentric raised ridges of dough (i.e., crust) on the surface of a pizza pie.

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 525/42 - Polymer derived from polycarboxylic acid or anhydride and polyhydroxy compound is derived from polyhydroxy compound containing ether linkage


Subclass of Class 525 - Synthetic resins or natural rubbers -- part of the class 520 series
Definition: Subject matter wherein a polymer derived from a polycarboxylic
No. of patents: 65
Last issue date: 08/28/2007


1    
NumberTitleIssue Date
7261935Co-extrudable multi-layer polymer
The present invention provides a multi-layer polymer composition having a polar outer layer and a non-polar second outer layer. The polar outer layer is preferably PVC and the non-polar outer layer, polypropylene. The adhesive tie layer is a unique blend of a copoly...
08/28/2007
6969511Synthetic bulk laxative
A synthetic bulk laxative which comprises a crosslinked graft polymer. It is formed of a hydrophilic monomer partially neutralized up to 75%, a polysaccharide gum up to 3% by weight and a crosslinker up to 2% by weight. The weight percentages are with respect to the...
11/29/2005
6830804Aromatic polyol end-capped unsaturated polyetherester resins and resin compositions containing the same having improved chemical and/or water resistance
Unsaturated polyetherester resins, and processes for making them, are described which are useful for making curable thermoset resin compositions, intermediates for curable thermoset resin compositions, fiber-reinforced polymer composites, intermediates for making sk...
12/14/2004
6723114Polyester/cyanoacrylate tissue adhesive formulations
The present invention is directed to bioabsorbable adhesive/hemostatic formulations of a 2-alkoxyalkylcyanoacrylate and liquid or solid polymeric modifiers and adjuvant. The present adhesive formulations are useful as tissue adhesive/sealants, hemostatic agents, and...
04/20/2004
6642306Method for preparing stable (co) polymers dispersions in a polyol
The invention concerns a method for preparing stable (co)polymer dispersions in a polyol by polymerising in situ a monomer or a mixture of ethylenically unsaturated monomers, in the presence of one or several azocarboxylic acid ester(s)....
11/04/2003
6583218Compounded unsaturated polyester resin compositions with a reduced monomer content
A compounded unsaturated polyester resin composition having 10-90 wt % of at least one high viscosity, high molecular weight unsaturated polyester, 10-80 wt % of at least one low viscosity, low molecular weight unsaturated polyester, and 9-30 wt % of at l...
06/24/2003
6512046Polymerizable unsaturated polyester resin composition
A practical polymerizable unsaturated polyester resin composition is provided, wherein a polyester skeleton derived from collected PET is introduced, for effective utilization of waste PET such as a PET bottle which has recently been considered a large ob...
01/28/2003
6255385Polyhydroxy polymers substituted with styryl ether groups and gels and surfaces prepared from them
A polyhydroxy polymer substituted with covalently linked alkene groups, characterized in that the alkene groups are styryl ether groups. A gel obtained by polymerization of a styryl ether substituted polyhydroxy polymer. A surface that has been hydrophili...
07/03/2001
6211305Aromatic polyol end-capped unsaturated polyetherester resins and resin compositions containing the same having improved chemical and/or water resistance
Unsaturated polyetherester resins, and processes for making them, are described which are useful for making curable thermoset resin compositions, intermediates for curable thermoset resin compositions, fiber-reinforced polymer composites, intermediates fo...
04/03/2001
6194525Powder coating composition comprising unsaturated polyesters and uses thereof
The powder coating composition of the present invention includes a low-temperature mixture of a powder (A) and a powder (B), in which at least the powder (A) includes an unsaturated polyester resin and a free radical initiator for initiating polymerizatio...
02/27/2001
6192520Water resistant protective garment for fire fighters
A protective garment of the type typically worn by fire fighters with improved water resistance is disclosed. In particular, the present invention is directed to an outer shell material for protective garments that is made from a fire resistant material c...
02/27/2001
6150458Process for preparing esters of (meth) acrylic acid
The present invention relates to a process for preparing (meth)acrylic acid esters by 1) reacting hydroxyl group-containing polyethers, polyesters or polyester ethers with (meth)acrylic acid in the presence of an acid esterification catalyst and a solvent...
11/21/2000
6100348Crosslinkable compositions
The invention describes crosslinkable compositions comprising (1) organosilicon compounds which contain radicals having aliphatic carbon-carbon multiple bonds, (2) organosilicon compounds having Si-bonded hydrogen atoms or, in place of or in addition to (1) an...
08/08/2000
5952436Process for making water-resistant polyetherester resins and thermosets
A general approach to making water-resistant polyetherester resins and thermosets is disclosed. In one aspect, an unsaturated polyetherester resin prepared by inserting a carboxylic acid derivative into a polyether is co-cured with a vinyl monomer and a d...
09/14/1999
5919972Graft polymer dispersion having a third monomer and polyurethane foams having a reduced tendency to shrink prepared thereby
There is a provided a stable low viscosity graft polymer dispersion comprising from 25 to 60 weight percent based on the total weight of the polymer dispersion of at least three ethylenically unsaturated monomers polymerized in the presence of a reaction ...
07/06/1999
5780558Process for making dicyclopentadiene polyetherester resins
A low-cost way to modulate the reactivity and acid number of polyetherester thermoset resins is disclosed. "Beginning" and "end" methods for making dicyclopentadiene (DCPD)-modified polyetherester resins are described. The "beginning" method comprises fir...
07/14/1998
5763099Binder composition for powder coatings
The invention relates to a binder composition for powder coatings. The binder composition is substantially based on a mixture of an unsaturated polyester and an oligomer having a plurality of allyl groups and further having at least either ether and ester...
06/09/1998
5741851Graft polymer dispersion having a third monomer and polyurethane foams having a reduced tendency to shrink prepared thereby
There is a provided a stable low viscosity graft polymer dispersion comprising from 25 to 60 weight percent based on the total weight of the polymer dispersion of at least three ethylenically unsaturated monomers polymerized in the presence of a reaction ...
04/21/1998
5736589Absorbable polyalkylene diglycolates
Absorbable polymers and blends of acrylated poly(alkylene diglycolate)s and aliphatic polyesters based on lactone monomers such as lactide, glycolide, e-caprolactone, p-dioxanone, and trimethylene carbonate are described. The polymers and blends exhibit a...
04/07/1998
5696225Process for making high-performance polyetherester resins and thermosets
A process for making high-performance polyetherester resins and thermosets is disclosed. A polyether polyol reacts with a dicarboxylic acid or anhydride in the presence of an insertion catalyst to produce an acid-terminated polyetherester resin. Reaction ...
12/09/1997
5696178Absorbable polyalkylene diglycolates
Absorbable polymers and blends of acrylated poly(alkylene diglycolate)s and aliphatic polyesters based on lactone monomers such as lactide, glycolide, e-caprolactone, p-dioxanone, and trimethylene carbonate are described. The polymers and blends exhibit a...
12/09/1997
5684086Cured thermosets and glass-reinforced composites from unsaturated polyetherester resins
Polymer blends of unsaturated polyetherester resins and dicyclopentadiene polyester resins give single-phase, cured thermosets having high tensile and flexural strength. The thermosets exhibit a single glass-transition temperature within the range of abou...
11/04/1997
55998752-component paints based on unsaturated polyesters for the coating of wood and wood materials
Coating compositions and processes for coating wood and wood materials are described. The compositions comprise a first component comprising at least one reactive thinner and at least one unsaturated polyester, and a second component comprising a curing c...
02/04/1997
5552486Polymers from propoxylated allyl alcohol
Propoxylated allyl alcohol homopolymers and copolymers of allyl alcohol and propoxylated allyl alcohol are disclosed. The polymers are soluble in many organic solvents, making them useful in a variety of applications, including polyesters, polyurethanes, ...
09/03/1996
5552478Low profile additives for polyester resin systems based on asymmetric glycols and aromatic diacids
This invention is a thermoplastic saturated polyester low profile additive (low profile additive) useful in sheet molding compounds for parts, especially vehicle parts, the additive has a major component derived from aromatic compounds such as terephthali...
09/03/1996
5512614Binder mixtures for stoving lacquers
A binder mixture for stoving lacquers comprising A) at least one alkyd resin; and B) at least one poly-N-acyl alkyleneimine prepared by cationic polymerization of a monomer mixture of a) from 10 to 90% by weight of at least one monomer corresponding to fo...
04/30/1996
5482995Grafted block copolymers, process for their manufacture and use of these copolymers
A grafted block copolymer having a backbone and grafts produced by monomers, the backbone consisting of sequentially distributed units wherein at least one block of the backbone is soluble in the monomer composition from which the grafts are produced and ...
01/09/1996
5399616Lubricant-containing aqueous preparations of copolymers
Lubricant-containing aqueous preparations of copolymers are obtainable by polymerisation of (A) 70 to 95% by weight of a monomer mixture of (a) 20 to 90% by weight of an ethylenically unsaturated carboxylic acid, in particular of a monocarboxylic acid, or of a...
03/21/1995
5360863Radiation curable compositions and their use
The present invention relates to compositions which may be cured by radical polymerization at room temperature and contain A) 20 to 100 parts by weight of ଱,ଲ-ethylenically unsaturated polyesters which are the reaction products of a) a dicarboxylic...
11/01/1994
5356709Non-PVC coextruded medical grade port tubing
The present invention provides an improved coextruded medical grade port tubing. The medical grade port tubing provides characteristics that are desirable in the medical industry and therefore can be used as a medical port tubing in, for example, renal th...
10/18/1994
5350798Absorbable tissue adhesives
Tissue adhesive compositions are disclosed which comprise at least one 2-noacrylate ester of the general formula (I) ##STR1## in admixture with from about 2 percent to about 25 percent of at least one oxalic acid polymer of the general formula (II) ...
09/27/1994
5344859Water-dilutable binder mixtures based on alkyd resins and poly-n-acyl alkyleneimines
This invention includes new water-dilutable binder mixtures based on alkyd resins modified by poly{ethylene glycol} and poly{N-acyl alkylene imines}, a process for preparing such binder mixtures, and the use of such binders in oxidatively drying paints an...
09/06/1994
5320886Hydrophilic crosslinking monomers and polymers made therefrom
This invention relates primarily to organofunctional monomers, predominantly dimethacrylates and/or diacrylates containing one or more (predominantly two carboxyl groups, with moieties that provide sufficient affinity with water to allow any desired amoun...
06/14/1994
5312691Copper-clad MC4 unsaturated polyester resin
Metal foil laminates of an unsaturated polyester resin, MC4, characterized by high performance electrical, physical and mechanical properties and useful for electronic circuit boards, low impedence microwave boards and E.M.I.-R.F.I. shielding, and a proce...
05/17/1994
5300563Polyester-based adhesives and composite structures
Adhesives comprising carboxylic acid- or anhydride-grafted elastomeric polyester copolymers, and composite structures made therefrom, are disclosed....
04/05/1994
5268445Segmented copolyester amides
The invention relates to segmented copolyesteramides built up from units derived from one or more flexible segments, 1,4-butanediol, 1,4-butanediamine and terephthalic....
12/07/1993
5182335Composite material for the moulding of fibre-reinforced unsaturated polyester resin
The addition of elastomeric thermoplastic polymers and melamine resin to the polymer matrix of composite materials for the moulding of fibre-reinforced unsaturated polyester resin improves the surface characteristics, resilience, and mouldabilty and heat ...
01/26/1993
5164445Polyamide resin composition
The present invention relates to a polyamide resin composition comprising a polyamide resin (A) and a modified polyester elastomer (b) prepared by the reaction of a polyester elastomer with a monomer selected from among unsaturated carboxylic acids and de...
11/17/1992
5045432Radiation-sensitive composition containing both a poly(N-acylalkyleneimine) and an unsaturated polyester and use thereof in lithographic printing plates
Radiation-sensitive compositions which are especially useful in the production of negative-working lithographic printing plates comprise a photocrosslinkable polymer containing the photosensitive group ##STR1## as an integral part of the polymer back...
09/03/1991
5041496Hydrophilic, swellable graft copolymers, their preparation and use
The present invention relates to hydrophilic, swellable graft copolymers composed, in random distribution, of 0.5 to 20% by weight of radicals of the general formula I ##STR1## of 79 to 99% by weight of radicals containing an acidic group, of the ...
08/20/1991
1    
 
Sign InRegister
Username  
Password   
forgot password?