Abstract: A resin composition comprises (a) 100 parts by weight of at least one compound selected from the group consisting of phenol resins and brominated phenol resins, (b) 20 to 500 parts by weight of a crystalline olefin resin, provides that copolymers of ethylene with unsaturated carboxylic acid ester or vinyl acetate are precluded, and (c) 0 to 300 parts by weight of a non-aromatic softening agent for rubber. The resin composition is easy to handle in dynamic cross-linking of rubber or a thermoplastic elastomer to give uniform cross-linking. A cross-linked rubber composition or thermoplastic elastomer composition has improved compression set and moldability.

Abstract: A vulcanizable adhesive composition, which comprises 100 parts by weight of phenolxylylene resin or phenolbiphenyl resin, 10 to 1,000 parts by weight of resol-type phenol resin, 0 to 1,000 parts by weight of novolak-type phenol resin, 10 to 1,000 parts by weight of unvulcanized nitrile rubber and 10 to 500 parts by weight of chlorinated polyethylene, is effectively applied to (hydrogenated) nitrile rubber with a nitrile content of 18 to 48%, and has a suppression effect on a decrease in the adhesiveness even if exposed to dip in various cryogenic liquids such as flon gas, polyalkylene glycol, water, etc. for a long time.

Abstract: The present invention relates to fire-retarded compositions comprising, by weight, the total being 100 parts: 50 to 75 parts of a blend of a polyamide (A) and a polyolefin (B), 25 to 50 parts of a blend comprising: 0.1 to 48.8 parts of a fire retardant, 0.1 to 30 parts of a phosphorus-containing plasticizer, 0.1 to 10 parts of a zeolite, the total of these three products being between 25 and 50. These compositions have a V0 or V1 classification according to the UL94-VB test when a fire test is carried out on test specimens 1.6 mm in thickness. They have many advantages, in particular the elongation at break measured according to ISO R 527-1B exceeds 100%. As regards the impact strength, they have a non-brittle behaviour in multiaxial impact at room temperature according to ISO 6603-2 (at a rate of 7.7 m/s). They retain at least 50% of their mechanical properties after ageing for seven days at 120° C. in hot air.

Abstract: An aqueous composition that includes (A) a butadiene polymer latex that is prepared by an emulsion polymerization in the presence of a styrene sulfonate stabilizer and (B) a phenolic resin. A preferred aqueous butadiene polymer latex is one that is prepared by emulsion polymerization of at least 60 weight percent dichlorobutadiene monomer (based on the amount of total monomers used to form the butadiene polymer), in the presence of a styrene sulfonate stabilizer.

Abstract: Methods for preparing formaldehyde-free resorcinol resins are disclosed. The methods generally comprise reacting resorcinol first with dicyclopentadiene and then reacting that mixture with an olefinic compound. The resins produced by this method are also disclosed, as are rubber compositions utilizing the present resins. The resins are characterized as having a free resorcinol content of about 1 wt. % or less, and yielding a suitable softening point when used in rubber applications.

Abstract: Curable fluoroelastomeric compositions comprising: A) 100 phr (parts) of fluoroelastomeric copolymers based on vinylidenefluoride (VDF) copolymers and at least a partially or completely fluorinated comonomer having an ethylene unsaturation; B) 0.

Abstract: The present invention provides performance enhancing shoe components. The invented shoe component includes an upper layer of 1,4-polybutadiene and, optionally, a rubber such as natural rubber, synthetic isoprene rubber or polyisoprene. The first layer is attached to a resilient layer which extends substantially the length of the shoe. Optionally, a third layer or a coating may be attached to the resilient layer. The invented shoe components may be formed as shoe inserts, insoles, midsoles or shoe soles.

Abstract: A polyester-polycarbonate composition comprising (A) at least one polyester prepared by the reaction of at least one alkenediol with at least one dicarboxylic acid or dialkyl ester thereof in the presence of a metallic catalyst, (B) at least one polycarbonate, (C) at least one silyl phosphate, the silyl phosphate being present in an amount effective to inhibit ester-carbonate interchange in the composition, optionally, (D) an organic or inorganic colorant, particularly, acid sensitive organic or inorganic colorants, (E) an impact modifier, and (F) a stabilizer. A method for stabilizing polyester-polycarbonate compositions against ester-carbonate interchange is also provided.

Abstract: An improved oxazolidine-based hardener to be used with a resorcinol resin or a tannin resin as the adhesive for the bonding of wood articles. Preferably, an oxazolidine is combined with particulate silica, and the resin is combined with a base such as NaOH. The adhesive based on the improved hardener can be used to glue wood particles to pass wet strength requirements after the glue is cured at room temperature for under 24 hours. The improved hardener composition is storage stable; it can be prepared anytime before its use and, thus, eliminate the need to prepare a hardener immediately prior to the glue use. Since it is formaldehyde-free; it eliminates the safety issues associated with handling formaldehyde or paraformaldehyde. Also, the hardener provides flexible gel time or working time. Since the resins can be cured at room temperature, heating in an oven is not needed but could be used to reduce curing time. If radio frequencies are used to cure the resins, the exposure time can be reduced.

Abstract: There is provided a co-condensation product obtainable by subjecting a p-alkylphenol to reaction with formaldehyde in the presence of an alkali catalyst to prepare a resol type condensate, and subjecting the resulting resol type condensate to reaction with a m-substituted phenol such as resorcin in the presence of an acid catalyst, wherein the content of the m-substituted phenol is not higher than 4% by weight, and the content of a component having a molecular weight not higher than 1,000 excluding both the p-alkylphenol and the m-substituted phenolis at least 25% by weight based on the total weight of the co-condensation product. This co-condensation product is low in fuming and in hygroscopic properties, exhibits excellent adhesiveness in vulcanizing adhesion between rubber and a reinforcing material, and further provides a vulcanized rubber article of high hardness.

Abstract: An adhesive composition containing a chlorinated ethylene/vinyl acetate copolymer and at least one of a phenolic resin and an aromatic nitroso compound as an adhesion-promoting additive. The chlorinated ethylene/vinyl acetate copolymer can be prepared without the utilization of environmentally hazardous chlorinated solvents and provides for adhesive compositions which exhibit excellent adhesion and resistance to adverse environmental conditions.

Abstract: Disclosed herein is an adhesive composition comprising (A) 100 parts by weight of at least one rubber component selected from the group consisting of unsaturated nitrile-conjugated diene copolymer rubbers prepared by an aqueous suspension polymerization, containing 10-45 wt. % of unsaturated nitrile units in their polymer chains and having a Mooney viscosity (ML.sub.1+4, 100.degree. C.) of 30-100, and hydrogenated unsaturated nitrile-conjugated diene copolymer rubbers obtained by hydrogenating at least part of carbon-carbon double bonds in each of the unsaturated nitrile-conjugated diene copolymer rubbers, and (B) 50-500 parts by weight of at least one thermosetting resin selected from the group consisting of phenolic resins and epoxy resins.

Abstract: Low fuming and less hygroscopic rubber compounding cashew nut shell liquid, allylphenol and alkylphenol modified resorcinolic novolak resins are made by condensing (A) a resol prepared by first reacting at least one monovalent phenol having the general formula (a) ##STR1## wherein R.sub.1 may be selected from the group consisting of hydrogen, an allyl, an alkyl of 1 to about 20 carbon atoms and an aryl having about 6 to about 12 carbon atoms, with methylformcel and/or furfural in the presence of an alkaline catalyst, or optionally reacting at least one monovalent phenol of the above-mentioned general formula (a) and cashew nut shell liquid, with methylformcel and/or furfural in the presence of an alkaline catalyst; and then (B) reacting the product of Step (A) with at least one of the compounds having the general formula (b) ##STR2## wherein R.sub.2 and R.sub.3 may be the same or different radicals selected from the group consisting of --H, --OH, --NH.sub.

Abstract: Rubber compounding novalak type resins are prepared by reacting (A) an alkyl substituted resorcinol or phenol prepared by reacting at least one of the compound of the formula ##STR1## wherein R.sub.1 and R.sub.2 may be the same or different radicals selected from the group consisting of --H, --OH, --NH.sub.2 and an alkyl of 1 to about 20 carbon atoms with a mono or polyunsaturated hydrocarbon selected from the group consisting of butene, diisobutylene, piperylene, dipentene, dicyclopentadiene, cyclopentadiene, isoprene, butadiene, pinene, styrene and divinylbenzene in the presence of an acid catalyst, wit (B) an aldehyde selected from the group consisting of formaldehyde, paraformaldehyde, acetaldehyde, propionaldehyde, butyraldehyde, crotonaldehyde, benzaldehyde and furfural.

Abstract: Plasto-elastomeric compositions with improved processability and high elasto-mechanical properties, consisting of mixes of a cross-linked EPDM rubber and a thermoplastic olefinic polymer, are prepared by the dynamic vulcanization method, using as cross-linking agent for the rubbery component a system comprising a non-halogenated phenolic resin, zinc oxide and p-toluenesulfonic acid.

Abstract: Plasto-elastomeric compositions are prepared which are endowed with an improved processability and consist of a blend or mix of EPDM rubber cross-linked with a thermoplastic olefinic polymer, by means of dynamic vulcanization, using as a cross-linking agent for the rubber a halogen-donor-free system consisting of a phenolic non-halogenated resin and a particular oxide or metal carbonate.

Abstract: Offset ink compositions are disclosed which contain as a vehicle a resin (III) obtainable by the steps of:(a) copolymerizing 100 parts by weight of a five-membered ring compound having a conjugated double bond, represented by the general formula: ##STR1## (wherein H is hydrogen, R is an alkyl group having 1 to 3 carbon atoms, and m and n are each 0 or an integer of 1 or more such that m+n=6) and/or a Diels-Alder addition product of said five-membered ring compound (Component A), with 10 to 150 parts by weight of a codimer (Component B) of said five-membered ring compound and 1,3-butadiene;(b) reacting 100 parts by weight of the resulting hydrocarbon resin (I) with 1 to 15 parts by weight of an unsaturated carboxylic acid or an anhydride thereof (Component C); and(c) reacting at elevated temperatures 100 parts by weight of the resulting acid-modified resin (II) with 5 to 100 parts by weight of a phenol resin (Component D) obtainable by the condensation of a phenol with formalin.

Abstract: Compositions useful as frictions particles comprised of tri- and/or tetrafunctional phenol, rubber, aldehyde, protective colloid and a reaction promoting compound. The friction particles are formulated into friction elements. A process for producing the friction particles in particulate form.

Abstract: Resins having a softening point of from 50.degree. to 130.degree. C., an OH-number of from 250 to 400 and an iodine number of from 90 to 160, obtainable by reacting an alkyl phenol-formaldehyde novolak or an alkyl phenol mixture-formaldehyde novolak under acid-catalysed conditions with a polunuclear phenol or polynuclear phenol mixture and formaldehyde and/or an aliphatic aldehyde or aliphatic aldehyde mixture, the ratio by weight of the alkyl phenol or alkyl phenol mixture to the polynuclear phenol or polynyclear phenol mixture being from 2.2:1 to 1:10.

Abstract: A method is disclosed for adhering rubber and reinforcing materials simultaneously with vulcanization, without defects such as fume and bloom phenomena of formaldehyde-acceptors, deliquescence and blocking, which is characterized in the use of a vulcanizable rubber composition containing an improved co-polycondensate resin which is prepared by condensing (A) a resol type pre-polycondensate prepared by at least one phenol and formaldehyde or acetaldehyde in the presence of an alkaline catalyst, and (B) resorcinol, m-aminophenol or the like, while distilling off water present in the reaction system, and then solidifying the reaction mixture.

Abstract: A heat-resistant resin composition having for its essential components (A) at least one maleimide compound obtained by reacting a condensation product of aniline, a phenolic compound and formaldehyde with an acid anhydride reactant containing at least 40 mole percent of maleic anhydride and (B) at least one compound selected from the group consisting of polyallyl phenyl ether compounds and polyallylphenolic compounds each having at least two allyl radicals.