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

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Patent No. 5823386

Reward Candy Dispenser for Personal Computers

A personal computer peripheral, battery powered reward candy dispenser which immediately presents students with a single candy for each problem completed correctly.

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Class 525/100 - With saturated Si-C or Si-H reactant or polymer thereof; or with solid copolymer derived from at least one Si-C or Si-H reactant wherein at least one of the reactants forming the solid copolymer is saturated; or with SPFI wherein at least one of the necessary ingredients contains a Si-C or Si-H bond or with a reaction product thereof; or with a SICP containing a Si-H or Si-C bond


Subclass of Class 525 - Synthetic resins or natural rubbers -- part of the class 520 series
Definition: Subject matter wherein, in addition to the solid polymer
No. of patents: 933
Last issue date: 04/17/2012


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NumberTitleIssue Date
4049634In-air curable resin compositions
A resin composition curable in air comprising (A) an unsaturated oligomer having a number average molecular weight of 500 to 4,000 and containing at least two acryloyl and/or methacryloyl groups at the ends of the molecule and at least one ethylenic inter... 		09/20/1977
4049867Thermosetting resin composition comprising an [(2,3-epoxypropoxy)alkyl]trialkyloxysilane
A novel thermosetting resin composition comprising at least one [(2,3-epoxypropoxy)alkyl]trialkoxysilane and at least one selected from polymers, prepolymers, copolymers and coprepolymers of epoxy-group-containing vinyl monomers, which may further contain... 		09/20/1977
4043953Ambient temperature, moisture-curable acrylic-silane coating compositions having improved potlife
The potlife of an ambient temperature, moisture-curable coating composition comprising an acrylic-silane interpolymer and a cure-accelerating catalyst is increased by the addition to the composition of from about 0.5 percent to about 15 percent by weight ... 		08/23/1977
4035453Dental impression materials
The invention relates to a method for preparing a dental impression which comprises applying a dental impression material to a tooth of which an impression is to be taken, curing the material and thereafter removing the resulting impression from the tooth... 		07/12/1977
4032487Aqueous acrylate-epoxy silane crosslinker adhesive dispersion composition
An adhesive composition which comprises, for each 100 parts by weight thereof, an aqueous dispersion having pH of about 8 to 12 of the following components dispersed in 25 to 75 parts of water: A. from 25 to 75 parts by weight of water insoluble linear polymer... 		06/28/1977
4026962Dispersion-polymerization process using block copolymers
There is disclosed a process of dispersion-polymerizing vinyl monomers promoted by free-radical catalysts. This process comprises dispersing under stirring in water a block copolymer of the A-B type wherein A represents a lipophilic block and B a hydrophi... 		05/31/1977
4018727Chemically convertible tape with in situ synthesized polymer
There is disclosed the in situ synthesizing of a polymeric material on a substrate by applying to the substrate a solid pyrolyzable binder which contains at least one member capable of polymerizing at or above the pyrolysis temperature of the binder and t... 		04/19/1977
3956420Polyolefin composition for electrical insulation
A polyolefin composition comprising polyolefin, a small amount of a ferrocene compound, and an 8-substituted quioline compound has excellent electrical breakdown strength, and therefore is suitable for electrical insulation. A polyolefin composition which... 		05/11/1976
3940349Compositions and process for making rigid plastic foams of modified vinyl ester resins and silicone compounds
By the introduction of pendant phthalate, isophthalate or terephthalate half ester groups thermosettable vinyl ester resins can be successfully frothed using certain silicone frothing agents.... 		02/24/1976
3935147Aqueous pattern paint from carboxylic resin, N-aldehyde resin, polysiloxane resin and fluorocarbon surfactant
A coating composition for providing a pattern or texture finish which is formulated of an aqueous dispersion of a resinous vehicle in a cross-linking agent for the vehicle, a fluorocarbon surfactant and a high molecular weight polysiloxane resin.... 		01/27/1976
3933407Articles coated with synergistic anti-fog coatings based on hydrophillic polymers and organosiloxane- oxyalkylene block copolymers
Synergistic antifogging action is observed by applying a combination of (1) a hydroxyalkyl acrylate or methacrylate or the like and (2) an organosiloxane-oxyalkylene block copolymer to a glass or plastic surface which is normally fogging.... 		01/20/1976
3932555Silicone elastomers
A reinforced silicone elastomer formed from 95% to 20% by weight of a cross-linkable poly(organo siloxane) and from 5% to 80% by weight of a polymerisable ethylenically unsaturated material by cross-linking a substantial proportion of the poly(organosilox... 		01/13/1976
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