Abstract: Blow moldable polyester compositions are provided. The polyester compositions contain respective amounts of thermoplastic polyester resin, salt of aliphatic polycarboxylic acid and multifunctional epoxide. The compositions exhibit suitable melt strength for blow molding thereof.
Abstract: Polyamides obtained by low pressure melt processing involving reactions of diesters of dicarboxylic acids with 1,3-diaminopropane. The polyamides are useful as molding resins.
Abstract: An amorphous polyamide having a high heat distortion temperature is produced by reacting toluenediamine with isophthalic acid, and optionally terephthalic acid, in the presence of either an aliphatic diacid, an aliphatic diamine or a mixture thereof. The polyamide provides the combined properties of a high heat distortion temperature, low shrinkage upon cooling, high levels of chemical resistance, is processable at temperatures below its degradation temperature, and has a high flexural modulus. With these combined properties the polyamide is particularly suitable for fiber reinforced automotive applications requiring exposure to excessive heat in conventional automotive paint bake ovens.
Type:
Grant
Filed:
May 25, 1990
Date of Patent:
May 14, 1991
Assignee:
General Electric Company
Inventors:
Edward N. Peters, Geoffrey H. Riding, G. F. Willard
Abstract: Polysulfonecarbonate-siloxane block copolymers provide ductile resins having high heat distortion temperatures and high glass transition temperatures. The polysulfonecarbonate-siloxane block copolymers are useful as molding compounds.
Abstract: Foamed thermoplastic blends of Nylon 6,I/T and polycarbonate resin are provided which exhibit good chemical resistance. The foamed blends are useful for making foamed articles such as chemically resistant foamed sheet.
Abstract: Compounds having defined functional groups are described which color stablize aromatic carbonate polymers or blends therewith upon exposure to sterilizing radiation.
Type:
Grant
Filed:
October 20, 1989
Date of Patent:
February 26, 1991
Assignee:
General Electric Company
Inventors:
Linda H. Nelson, Roger W. Avakian, Arnold Factor
Abstract: Compounds having defined functional groups are described which color stabilize aromatic carbonate polymers or blends therewith upon exposure to steriliizing radiation.
Type:
Grant
Filed:
October 20, 1989
Date of Patent:
February 26, 1991
Assignee:
General Electric Company
Inventors:
Linda H. Nelson, Roger W. Avakian, Arnold Factor
Abstract: Compounds having defined functional groups are described which color stabilize aromatic carbonate polymers or blends therewith upon exposure to sterilizing radiation.
Type:
Grant
Filed:
October 20, 1989
Date of Patent:
February 26, 1991
Assignee:
General Electric Company
Inventors:
Linda H. Nelson, Roger W. Avakian, Arnold Factor
Abstract: Compounds having defined functional groups are described which color stabilize aromatic carbonate polymers or blends therewith upon exposure to sterilizing radiation.
Type:
Grant
Filed:
October 20, 1989
Date of Patent:
February 26, 1991
Assignee:
General Electic Company
Inventors:
Linda H. Nelson, Roger W. Avakian, Arnold Factor
Abstract: Compounds having defined functional groups are described which color stabilize aromatic carbonate polymers or blends therewith upon exposure to sterilizing radiation.
Abstract: Poly(carbonate-siloxane) copolymers having reduced tendencies to burn are provided by the addition of an aromatic sulfone sulfonate thereto. These materials find utility in electrical applications.
Abstract: A coextruded moisture resistant polycarbonate article has a relative thin moisture resistant, polyphthalate-carbonate layer adhered to a relatively thick aromatic polycarbonate corelayer. The coextruded article has the high degree of transparency of aromatic polycarbonates and the moisture resistance and haze resistance of polyphthalate-carbonate. Coextruded sheet and film of the present invention may be subsequently thermoformed without losses in the desirable properties thereof.
Abstract: A process for minimizing the formation of color during preparation of polyamides by interchange of diesters of dicarboxylic acids with diamines in the presence of hypophosphorous acid.
Type:
Grant
Filed:
June 9, 1989
Date of Patent:
January 8, 1991
Assignee:
General Electric Company
Inventors:
Kenneth P. Blackmon, Donald C. Clagett, Sheldon J. Shafer
Abstract: An amorphous polyamide resin is provided having the combined properties of a high glass transition temperature and excellent oxygen barrier properties. The polyamide is obtained from the reaction products of para-xylylene diamine, adipic acid and isophthalic acid, and finds particular utility as a container layer for hot fill packaging of fruit juices.
Type:
Grant
Filed:
July 21, 1989
Date of Patent:
January 8, 1991
Assignee:
General Electric Company
Inventors:
Daniel W. Fox, Edward N. Peters, Geoffrey H. Riding, G. Fred Willard
Abstract: 1,4"-(bishalophenylsulfone)terphenyl and polymers therefrom are provided. The polymers exhibit high heat distortion temperatures, and high levels of chemical resistance and thermo-oxidative stability. The polymers are useful as molding compositions for making molded articles.
Abstract: Polyphenylene ether-polyamide compositions having improved resistance to water absorption and swell are provided by incorporating therein a phenolic compound.
Abstract: A fibre reinforced plastic structure comprising a matrix of thermoplastic material and conductive fibres provides effective EMI shielding. Process for making the structure permits the employ of relatively long conductive fibres which reduce the fibre loading required for effective shielding.
Type:
Grant
Filed:
May 3, 1989
Date of Patent:
August 28, 1990
Assignee:
General Electric Company
Inventors:
Daniel E. Bullock, Horold F. Giles, Jr., Walter L. Hall
Abstract: A process for preparing a hardcoated polycarbonate sheet involves (i) ultraviolet radiation curing an acrylic coating onto one surface of a flexible polycarbonate film via a drum casting technique to yield a flexible, abrasion and chemical resistant hardcoated film; and (ii) laminating the hardcoated film onto a thick rigid polycarbonate substrate by an on-line ultraviolet radiation lamination method. The process is fast, requires minimal labor and provides high optical quality hardcoats for polycarbonate sheet.
Abstract: The invention relates to polymer mixtures which comprise a polybutylene terephthalate, an aromatic polycarbonate, and a dialkyl silicone fluid. Due to the presence of the dialkyl silicone fluid compound a good lacquer bonding is obtained.
Type:
Grant
Filed:
November 9, 1988
Date of Patent:
July 17, 1990
Assignee:
General Electric Company
Inventors:
Wilhelmus Jozefus L. A. Hamersma, Jan de Boer, Wilhelmus M. M. Roovers, Gerrit de Wit
Abstract: Compounds having defined alkene functional groups are described which color stabilize aromatic carbonate polymers or blends therewith upon exposure to sterilizing radiation.
Type:
Grant
Filed:
August 30, 1989
Date of Patent:
July 3, 1990
Assignee:
General Electric Company
Inventors:
Linda H. Nelson, Roger W. Avakian, Arnold Factor