摘要:
A process for the preparation of a flexible phenolic resin which comprises co-condensing a dimethylol phenol, substituted by an alkyl group having from 1 to 20 carbon atoms, with a methylol derivative of a polyfunctional phenol in which derivative at least half of the reactive hydrogen atoms in the polyfunctional phenol are substituted by methylol groups and wherein the ratio of the methylol groups of the derivative of the polyfunctional phenol per mol of the dimethylolalkyl phenol is from 1.4:1 to 6:1, a phenolic resin prepared by said process, a coating composition containing said phenolic resin and an article coated with or comprising said phenolic resin.
摘要:
Sulfuric acid compounds are removed from reaction mixtures by a reaction with polybutadiene alone or combined with unsaturated terpene compounds at elevated temperatures whereby products of reduction are formed which are volatilizable at the temperature of reaction and by expelling said products of reduction from the reaction mixture. Thus a product being substantially free from a sulfur content is obtained.
摘要:
Sulfuric acid compounds are removed from reaction mixtures by a reaction with unsaturated terpene compounds or with polybutadiene at elevated temperatures whereby products of reduction are formed which are volatilizable at the temperature of reaction and by expelling said products of reduction from the reaction mixture. Thus a product being substantially free from a sulfur content is obtained.
摘要:
A process for the preparation of a modified hydrocarbon resin suitable for use as a binder in a printing ink from a hydrocarbon resin (I) relatively unsuitable for use as a binder in a printing ink and having a melting point of at most 110.degree. C. which comprises reacting in at least one step in any desired sequence a reactant selected from the group consisting of(I) at least one hydrocarbon resin based on at least one polymerizable hydrocarbon monomer selected from the group consisting of(a) 20 to 100% by weight, referred to the total of polymerizable monomers, of hydrocarbon fractions containing substantial and essential amounts of C.sub.5 -fractions,(b) 15 to 50% by weight, referred to the total of polymerizable monomers, of methylcyclopentadiene,(Ia) a combination of (I) with an olefinically unsaturated monomer hydrocarbon selected from the group consisting of aromatic hydrocarbons of 8 to 12 carbon atoms, cycloaliphatic hydrocarbons having 5 to 10 carbon atoms and aliphatic hydrocarbons having 2 to 12 carbon atoms, the total amount of monomers always being 100% by weight,with(II) 3 to 20% as much by weight of a dicarboxylic acid unit selected from the group consisting of(IIa) an .alpha.,.beta.-olefinically unsaturated dicarboxylic acid and(IIb) an equivalent amount of the corresponding dicarboxylic anhydride as defined in IIa)and with(III) 1 to 100% as much by weight of a phenol aldehyde resin or its equivalent selected from the group consisting of(IIIa) a phenol aldehyde resin and(IIIb) a mixture of a phenol and an aldehyde being the same as the starting material aldehyde of (IIIa);the proportion of (I), (II) and (III) being correlated so that said modified hydrocarbon resin has a melting point of at least 120.degree. C. and a viscosity in 50% toluene solution at 20.degree. C. of at least 100 centipoise, an addition product prepared according said process and a printing ink containing a binder obtained by said process.
摘要:
A process for the preparation of a modified hydrocarbon resin suitable for use as a binder in a printing ink from a hydrocarbon resin (I) relatively unsuitable for use as a binder in a printing ink and having a melting point of at most 110.degree. C. which comprises reacting in at least one step and in any desired sequence (I) as defined below with (II) approximately 3-20% as much by weight of a dicarboxylic acid unit as defined below and with (III) approximately 1-100% as much by weight of an alkyl phenol-aldehyde resin or its equivalent as defined belowwherein(I) is a hydrocarbon resin containing at most 20% by weight of indene or methyl indene units and is based on a considerable proportion of polymerizable hydrocarbon monomers containing about 5 to 11 carbon atoms and at most 20% by weight of indene or methyl indene(II) is selected from the group consisting of(IIa) an .alpha., .beta. olefinically unsaturated dicarboxylic acid and(IIb) an equivalent amount of the corresponding dicarboxylic anhydride ester or amide of the dicarboxylic acid defined in (IIa) and(III) is selected from the group consisting of(IIIa) an alkyl phenol aldehyde resin and(IIIb) an amount of an alkyl phenol and an aldehyde equivalent to that of (IIIa);the proportion of (I), (II) and (III) being correlated so that said modified hydrocarbon resin has a melting point of at least 120.degree. C. and a viscosity as defined herein of at least 100 cP and a printing ink containing a binder obtained by said process.
摘要:
A reaction product of a diolefine polymer with a phenol and an olefinically unsaturated carboxylic acid or its anhydride wherein the diolefine polymer is(a) a homopolymer of a diene having 4 to 10 carbon atoms,(b) a copolymer of at least two dienes of (a),(c) a copolymer of at least one diene of (a) with a minor molar amount of at least one copolymerizable monomer,(d) a combination of at least two of (a) to (c)Wherein the amount of phenol is in the range from 2 to 40% by weight and the amount of the unsaturated carboxylic acid or its anhydride is in the range from 2 to 55% by weight, always referred to the starting polymer, a process for the preparation of said product wherein(a) a homopolymer of a diene having 4 to 10 carbon atoms,(b) a copolymer of at least two dienes of (a),(c) a copolymer of at least one diene of (a) with a minor molar amount of at least one copolymerizable monomer,(d) a combination of at least two of (a) to (c),(e) polymerizable unsaturated monomers being the base for one of polymers (a) to (c) either alone or in admixture are polymerized and at the same time the reaction massIs reacted in one step with an amount of phenol sufficient to cause a content of bound phenol groups in the range from 2 to 40%, and with 2 to 55% by weight of (h) an unsaturated carboxylic acid, (i) an anhydride thereof or (k) of a combination of (h) and (i), referred to the starting polymer, and wherein unreacted phenol is subsequently eliminated and a binding agent comprising said product.
摘要:
A process for the preparation of a modified hydrocarbon resin free of indene. This resin is suitable for use as a binder in a printing ink. It is made from a hydrocarbon resin which is relatively unsuitable for use as a binder in a printing ink.
摘要:
A resinous composition containing as an essential ingredient a binder comprising a product obtained byI. reacting in a first stage a solution of1. a copolymer containing anhydride groups with2. at least one alcohol containing up to 2 hydroxy groups to yield a reaction product wherein the anhydride groups are at least partially converted to semiester groups, andIi. reacting3. the product thus obtained in the presence of water at a temperature in the range from 50.degree. to 120.degree. C with4. a salt-forming compound of a polyvalent metal, the solvent present in the first stage of the reaction being compatible with said alcohol and partially miscible with water only to such an extent that two phases are formed therewith together with at least one pigment and an aromatic hydrocarbon as a solvent.
摘要:
A process for preparing modified copolymers while substantially reducing disintegration, which copolymers contain carboxylic groups to which cations of polyvalent metals are bound which comprises reacting in a first stage a solution of a copolymer containing anhydride groups of vicinal carboxylic groups or a combination of such anhydride with vicinal carboxylic groups and/or other radicals capable of forming vicinal carboxylic groups with certain alcohols to yield a reaction product in which at least a part of the anhydride groups is converted to semiester groups, and reacting the product thus obtained in the presence of water at a temperature in the range from 50.degree. to 120.degree. C with a salt-forming compound of a polyvalent metal. The invention is also directed to resinous compositions, particularly printing inks, containing such products.