Abstract: The present invention relates to a brake lining composition comprising friction particles and a resin binder therefor, said friction particles being a thermoset reaction product of an amine modified novolac resin and an aromatic polycarboxylic compound having improved thermal stability. The invention also relates to a method for preparing said brake lining composition.

Abstract: The present invention relates to a composite sheet member having a plurality of coextruded laminar layers comprising a base layer having at least one exterior layer, said base layer being formed from a first polyblend of low grafted rubber content and said exterior layers being formed from a second polyblend having a higher grafted rubber content, said composite sheet having increased impact strength when impacted with a force through the base layer to the exterior layer.

Abstract: A process for the preparation of polyarylene esters from aromatic dicarboxylic acids and diesters of a diphenol admixture containing 1,2-bis(4-hydroxyphenyl)ethane. The polymerization process is catalyzed by a potassium compound and yields polymer of improved color and fire safety performance.

Abstract: The present invention relates to a fusible polymeric alloy composition comprising (A) a matrix interpolymer, (B) a grafted diene rubber, (C) a polymer other than (A) or (B) having a solubility parameter in the range of 8.5 to 13 and (D) an inorganic filler. Said alloy having low thermal expansion, high modulus and toughness yet unexpectedly superior processing and molding properties for highly filled alloys.

Abstract: Carboxylated styrene allyl alcohol copolymers are prepared by reaction of trimellitic anhydride and a hydroxy copolymer under controlled conditions to minimize polyester formation. The hydroxy copolymer is a copolymer of styrene or a substituted styrene and allyl alcohol or methallyl alcohol containing from 1.8 to 10 weight percent hydroxyl. At least one hydroxy group per molecule and preferably 20-80 percent of the hydroxyls of the hydroxy copolymer are reacted with trimellitic anhydride. The carboxylated styrene allyl alcohol copolymers can be used in aqueous or organic solvent solution in adhesive and surface coating applications.

Abstract: The invention relates to an improved process for preparing very high ortho novolac resins, said process including reacting phenol and formaldehyde in the presence of a divalent electropositive metal oxide, hydroxide or salt and a strong acid or salts of said metals wherein the improvement comprises conducting said reaction under anhydrous conditions with particular divalent electropositive metal ion combinations.

Abstract: The polymeric polyblend comprises a matrix terpolymer of alkenyl aromatic, alkenyl nitrile and acrylate monomers blended with a grafted block copolymer rubber as dispersed rubber particles, said particles being grafted with and having occluded terpolymer of substantially the same composition of said matrix phase. The polyblend is a product of a mass polymerization process having superior toughness and transparency.

Abstract: This invention relates to an improved polymeric polyblend characterized by a blend of (A) a polymer of at least one monoalkenyl aromatic monomer having dispersed therein an amount sufficient to toughen said polyblend of a (B) diene rubber, said rubber being dispersed as crosslinked grafted rubber particles wherein said improvement comprises (C) said diene rubber particles having a rubber moiety structured in a novel morphological form comprising rubber fibers or rubber sheets and mixtures thereof.

Abstract: Poly(ester-amide) adhesive compositions comprising a finely divided spheroidal metal. The poly(ester-amide) comprises crystalline polyester and amorphous polyamide segments formed by reaction of a C.sub.18 to C.sub.54 polycarboxylic acid mixture and a C.sub.2 to C.sub.10 aliphatic or alicyclic primary diamine. The finely divided spheroidal metal is selected from the group consisting of aluminum, iron, mild steel, stainless steel and zinc. The weight ratio of poly(ester-amide) to metal is in the range of 70:30 to 30:70. The adhesive compositions are useful as hot melt adhesives and cavity fillings.

Abstract: A composition comprising a nylon resin, an additive insoluble in nylon and a relatively non-polar ester plasticizer selected from the group consisting of an adipate or sebacate with a C.sub.4 to C.sub.12 alkyl or cycloalkyl alcohol or a phenol and fatty acid esters of pentaerythritol.

Abstract: A method of coating an article which comprises blending a reactive polymer and an N,N'-bis(alkoxymethyl)uron to form a homogeneous solution, applying a film of the solution to a surface of the article and baking the article at a temperature sufficient to thermoset the solution. The reactive polymer contains reactive groups such as hydroxyl and carboxyl and is of molecular weight in the range 300 to 5000. The uron ether is employed as a cosolvent for the polymer whereby the solution may be applied as a coating without the need for significant amounts of conventional solvents. Interaction between the polymer and the uron ether promoted by heat in the presence of acid catalyst shifts the role of the uron ether to that of a crosslinking agent for the polymer.

Abstract: A method of stabilizing concentrated aqueous formaldehyde solutions by the addition of a stabilizing amount of an interpolymer of vinyl acetate, vinyl acetal and vinyl alcohol to the formaldehyde solution. The interpolymer comprises from about 25 to about 65 parts by weight vinyl acetate units, from about 20 to about 72 parts by weight vinyl acetal units derived from acetaldehyde and from about 3 to about 15 parts by weight of vinyl alcohol units. The interpolymer is prepared by alcoholysis and acetalization of a low molecular weight polyvinyl acetate.

Abstract: The polyblend comprises: (A) a graft copolymer having superstrate copolymers of monovinylidene aromatic and ethylenically unsaturated nitrile monomers and a substrate of a diene rubber dispersed in a matrix phase (B) comprising a blend of about 45 to 75 percent by weight of a (I) copolymer of monovinylidene aromatic and ethylenically unsaturated nitrile monomers and about 25 to 55 percent by weight (II) a methylmethacrylate polymer.

Abstract: A process for continuously coagulating a polymeric latex and consolidating as a paste coagulum in an apparatus comprising a barrel containing first and second feed ports, a rotor having opposed rows of angled tab blades and opposed wiper blades, a feed and closure means and a discharge port in an end of said barrel opposed to said feed ports, the steps comprising, continuously feeding an aqueous latex and an organic solvent simultaneously with a coagulant to said apparatus, continuously mixing said feeds and coagulating said latex forming a coagulum, consolidating said coagulum as a solvent polymer phase having the aqueous phase dispersed therein, said coagulum taking the form of a paste.

Abstract: The invention relates to an improved phenol-aldehyde resole resin composition for battery separators and a fibrous battery separator impregnated with the composition. Said composition comprising a resole resin with particular soluble hydroxy organic salts that do not salt out and improve the oxidation resistance of the battery separators.

Abstract: Acid modified vinyl acetate interpolymers containing 2-acrylamido-2-methylpropanesulfonic acid and their use as textile sizes. The interpolymers comprise from about 64.5 to about 95.8 weight percent of vinyl acetate, from about 4 to about 9.5 weight percent of acrylic acid, from about 0.2 to about 1 weight percent of 2-acrylamido-2-methylpropanesulfonic acid and from about 0 to about 25 weight percent of an ethylenically unsaturated monomer selected from the group consisting of alkyl acrylates, dialkyl maleates, and dialkyl fumarates. The interpolymers are prepared preferably by latex polymerization. The textile size solutions are formed by dissolving the interpolymers in dilute aqueous bases or in an organic solvent, and can be used advantageously in combination with polyvinyl alcohol and starches. The sizes demonstrate excellent adhesion to spun polyester and spun blends of polyester and natural fibers and are readily removed by aqueous scouring solvents.

Abstract: A method of filling cavities with a hot melt adhesive composition. The adhesive composition comprises a block copoly(ester-amide) containing crystalline polyester and amorphous polyamide segments and a finely divided spheroidal metal. The weight ratio of poly(ester-amide) to metal is in the range of 70:30 to 30:70. The adhesive composition is applied as a hot melt to fill a cavity in a substrate and is sanded smooth to provide a surface which accepts paint.

Abstract: Acid modified vinyl acetate interpolymers containing 2-acrylamido-2-methylpropanesulfonic acid and their use as textile sizes. The interpolymers comprise from about 64.5 to about 95.8 weight percent of vinyl acetate, from about 4 to about 9.5 weight percent of acrylic acid, from about 0.2 to about 1 weight percent of 2-acrylamido-2-methylpropanesulfonic acid and from about 0 to about 25 weight percent of an ethylenically unsaturated monomer selected from the group consisting of alkyl acrylates, dialkyl maleates, and dialkyl fumarates. The interpolymers are prepared preferably by latex polymerization. The textile size solutions are formed by dissolving the interpolymers in dilute aqueous bases or in an organic solvent, and can be used advantageously in combination with polyvinyl alcohol and starches. The sizes demonstrate excellent adhesion to spun polyester and spun blends of polyester and natural fibers and are readily removed by aqueous scouring solvents.

Abstract: The shuttering member of this invention comprises a foamed resin block rabbeted along at least two opposed longitudinal edges of the same major surface of the block and having internal strengthening rods across the width of the block. The invention also comprises a method of producing a foamed shuttering member having strengthening rods.

Abstract: Disclosed herein is a method for preparing fire retardant styrenic polymer molding compositions with improved impact strength which compositions contain a metal oxide and a halogenated fire retardant additive. The method comprises dispersing the metal oxide into a minor portion of the styrene polymer component using high intensity mixing and temperatures at or above the fusion temperature of the styrene polymer in order to obtain a uniform dispersion. The metal oxide-polystyrene dispersion is then blended with the other ingredients of the polyblend. The resulting blend is compounded at temperatures greater than 255.degree. C. and then comminuted to form a molding composition.