Abstract: This invention is directed to a thermoplastic polymer that is solid at room temperature and which expands on further polymerization, to form a crosslinked polymer, and to a process for preparing the polymer and the crosslinked polymer. In a preferred embodiment the polymer is prepared by polymerizing 10-90 but preferably 20-80 mole percent of a lower alkyl acrylic monomer containing a spirobislactone moiety, 10-90 but preferably 20-80 mole percent of a lower alkyl acrylic monomer containing an epoxide moiety, and 0.1-5 but preferably 0.5-1 mole percent of a lower alkyl acrylic monomer containing a functional moiety chosen from primary amino, secondary amino, mercaptan, and hydroxyl groups which can initiate crosslinking with the spirobislactone moiety. The crosslinked polymer is devoid of a spirobislactone carbonyl absorption band and is insoluble in conventional organic solvents.

Abstract: Curing of phthalonitrile monomers and prepolymers is accelerated by inclusion of an acid curing agent. Cured phthalonitrile polymers have high thermal oxidative stability and are useful as resins in various compositions and as adhesives.

Abstract: A substrate assembly and method for its preparation, said substrate assem comprising at least two substrates adhesively bonded with a cured thermosetting polymer being able to withstand a temperature of 200.degree.-400.degree. C. which polymer is derived from a diphthalonitrile monomer and/or prepolymer with an aromatic moiety in the bridging group which monomer and/or prepolymer is solid at room temperature but which is rendered liquid by heating it to above its melting temperature. Said monomer in liquid state, and its prepolymer in liquid state, have tack with respect to said substrate.

Abstract: Polymerization or cure of di-phthalonitrile monomers or prepolymers by a curing agent selected from (a) an acid and an amine, (b) a salt of an acid and an amine, and (c) mixtures of (a) and (b). In a preferred embodiment, the curing agents are amine salts which are reaction products of an aromatic amine and an aromatic sulfonic acid. The use of the novel curing agents enhances curing rates and results in polymers which have high Tg.

Abstract: The present invention provides a wafer-like glass filter having channels therethrough having an average diameter of less than 1 micron, and further provides methods of making the filter.

Abstract: Nonlinear optical composites with large third-order optical response compd of metal clusters uniformly dispersed in polymers are prepared by vapor deposition of a metal onto a cold support while simultaneously cocondensing a vapor of an organic material. Where the organic material is a monomer, it polymerizes either when it comes in contact of the metal and/or when the cold surface is warmed. The unpolymerized monomer is removed to yield a processable composite. When the organic material is a diluent, it deposits as a solid on the cold surface forming a dispersion of the solid metal clusters in the liquid diluent. A polymer solution is then mixed with the dispersion and the composite is formed after removal of the diluent and the solvent for the polymer.

Abstract: A method is disclosed for the incorporation of relatively high vapor pressure elements into good quality GaAs at extremely low T.sub.s using the migration enhanced epitaxy techinque. Zinc was doped in GaAs material grown at a low T.sub.s of 120.degree. C. Zinc may thus be used as a p-type dopant replacing more toxic Be. Similarly, other high vapor pressure elements can be incorporated much more efficiently into the material grown at low T.sub.s.

Abstract: In a preferred embodiment, the invention herein relates to blends of a PVC-containing thermoplastic material and an impact modifier which blends have improved abrasion resistance and a reduced adhesion to glass, said impact modifier has Shore A hardness greater than 70 and is used in an amount of greater than 50 weight parts per 100 weight parts of said thermoplastic material.

Abstract: This invention pertains to the use of a novel cocatalyst in ring opening polymerization of a cycloolefin containing a norbornene moiety in conjunction with a metathesis catalyst, said cocatalyst is selected from aluminum-siloxalanes, aluminum-stannoxalanes, aluminum-germoxalanes, aluminum-plumboxalanes, dialuminoxanes, and mixtures thereof.

Abstract: The invention herein is directed to article and process for making it. The article is characterized by a substrate composed of a ring-opened polymer of a norbornene-type monomer having tricyclic or higher cyclic structure and a polymer sheet tenaciously adhering to the substrate. The process includes the steps of positioning the polymer sheet in a mold, flowing the monomer in a liquid state in a plurality of streams into the mold, polymerizing the monomer in the mold by ring-opening of the monomer, and removing the article from the mold with the polymer sheet on at least one outer surface thereof.

Abstract: Described herein is an oily, transparent reaction product which is prepared by heat treating at 110.degree.-220.degree. C. a dicyclopentadiene and a vinyl aromatic compound. This reaction product can be polymerized by ring-opening in presence or absence of a norbornene monomer to produce a thermoset polymer. Freezing point of the reaction product is below 10.degree. C.

Abstract: A method of producing a pore-free polynorbornene article having thick-walled portions is provided. The method comprises providing a monomer charge containing at least one norbornene monomer having a tricyclic or higher cyclic structure; introducing the monomer charge into a mold at a temperature greater than the inside mold temperature; polymerizing the monomer charge under pressure via a ring-opening catalyst system; cooling the molded article; and removing the molded article from the mold.

Abstract: A product is disclosed which comprises a ring-opened base polymer of at least one norbornene-type monomer and a thin polymer film on at least a portion of said base polymer of a vinylidene chloride polymer or an unsaturated nitrile polymer whereby the product has improved weatherability and reduced odor. The method of making the product is characterized by applying the polymer film from an organic solution of a vinylidene chloride resin or an unsaturated nitrile resin and then drying the coating to remove the organic solvent.

Abstract: This invention pertains to the use of pyridinium isopoly and heteropoly molybdates and tungstates as catalysts in a metathesis catalyst system in polymerization of norbornene-type monomers by ring opening polymerization. Polymerization can be by reaction injection molding in absence of a solvent whereby a thermoset polymer is produced or by solution polymerization in presence of a suitable solvent whereby a thermosetting or a thermoplastic polymer is produced. The monomers are selected from polycycloolefins containing at least on enorbornene group and mixtures thereof.

Abstract: A reinforced polymeric matrix comprising a glass mat and a norbornene polymer surrounding the glass mat, the glass mat is composed of at least one glass fiber treated with a silane coupling agent and a binder adhering the glass fiber(s) to the norbornene polymer; the binder is selected from polyolefins, vinyl aromatic polymers, and ring-opened polymers of at least one norbornene-type monomer containing at least one norbornene group.

Abstract: This invention is directed to a fluid pump containing a structural member, such as casing, which the fluid contacts as it enters the pump, and to a structural member having sufficient mechanical strength and flexibility for use in a fluid pump, such as a casing, which is made of a ring-opened polymer of a norbornene-type monomer containing an effective amount of an elastomer, the structural member has heat distortion temperature of over 120.degree. C., elongation at break of 15 to 80%, and flexural modulus of elasticity of 170 kg/mm.sup.2 or above.

Abstract: An organic fluorine compound as a mold release agent wherein at least one norbornene compound is polymerized by ring opening in a mold coated with said release agent. The organic fluorine compound release agent can be used in combination with a conventional mold release agent.

Abstract: This invention relates to stable oil-in-water emulsions and to products based on such emulsions which contain a modified polymer which is a copolymer of a preponderant amount of an acrylic acid and a smaller amount of a long chain acrylate monomer which modified polymer renders the emulsions stable for over a year at room temperature and which imparts to the emulsions the quick breaking property whereby the emulsions break on coming in contact with an electrolyte or skin, instantaneously coalescing and releasing oil from the emulsions.

Abstract: A clear or translucent liquid detergent composition that is pourable at room temperature and provides soil anti-redeposition, improved cleaning performance, and viscosity control, comprises 1 to 60% of at least one surfactant, up to 20% of a water-soluble sequester builder, 0.1 to 2% of an active agent selected from homopolymers and copolymers of acrylic acid, and enough water and other additives to make 100% of said composition.

Abstract: Polymer and process of polymerizing a monomer charge containing at least 85% of an olefinically unsaturated carboxyl monomer of 3 to 5 carbon atoms at up to 15% of a copolymerizable comonomer, in the presence of a mixed reaction medium containing an organic solvent and a hydrocarbon solvent in respective weight ratio of 95/5 to 1/99, said organic solvent is selected from ketones, esters, ethers, and alcohols having solubility parameter in the range of 8 to 15 and said hydrocarbon solvent is selected from aliphatic and cyclic aliphatic alkanes containing 4 to 12 carbon atoms and non-benzene aromatics of 7 to 9 carbon atoms. Said organic solvent and said hydrocarbon solvent are preferably liquid at room temperature. Viscosity of the 0.2% by weight polymer is in excess of 15,000 cps, preferably in excess of 20,000 cps, and its clarity is at least 80%, preferably 85% transmittance. Viscosity of 1% mucilages containing 1% sodium chloride salt is greater than 5,000 cps, preferably greater than 8,000 cps.