摘要:
An additive composition comprises an impact modifier, an acetal compound, and a co-additive compound. An additive composition comprises a plurality of first particles and second particles. The first particles comprise an impact modifier. The second particles comprise a thermoplastic polymer, an acetal compound, and a co-additive. A polymer composition comprises a thermoplastic polymer, an impact modifier, an acetal compound, and a co-additive.
摘要:
An additive composition comprises a plurality of granules. The granules comprise a polymer additive selected from the group consisting of clarifying agents, nucleating agents, and mixtures thereof. About 75 wt.% or more of the granules present in the additive composition have a particle size of about 0.5 mm to about 2.8 mm, and the granules have a particle hardness of less than 50 cN. A method for producing a polymer composition utilizes the above-described additive composition.
摘要:
A nucleating agent comprising 100 parts by weight of a dibenzylidenesorbitol compound and either 0.1 to 50 parts by weight of at least one amino acid and 0.1 to 100 parts by weight of at least one alkali metal salt of a fatty acid having 8 to 32 carbon atoms or 0.1 to 50 parts by weight of at least one alkali metal salt of an amino acid and 0.1 to 100 parts by weight of at least one fatty acid having 8 to 32 carbon atoms; a polyolefin resin composition comprising the nucleating agent and a polyolefin resin; and a molded object obtained by molding the resin composition.
摘要:
The invention concerns improved compositions of alditol acetal, in particular 1,3-2,4-di(benzylidene) sorbitol ("DBS") or one of its alkylated derivatives. Said compositions are improved in terms of washout and/or thermal stability, resulting from the combination of alditol acetal with a builder selected among tocopherols, polyols and some of their respective derivatives. Said builders can act as binding or densifying agents and/or stabilising or masking agents. The alditol acetal and the builder are advantageously combined by cold mixing, followed by granulation or compaction, also by cold process. The compositions, for example based on DBS or methylated derivatives of DBS are in the form of densified or compacted powders, granules, tablets or extrudates. They are particularly useful for preparing plastic or gelled materials, or additives for such materials.
摘要:
A method of molding a polyolefin resin which comprises dissolving at least one dibenzylidenesorbitol compound in a molten polyolefin resin, subsequently cooling the melt to a temperature not higher than the sol-gel transition temperature in cooling to thereby form network crystals of the benzylidenesorbitol compound, and molding the obtained resin composition at a temperature which is not lower than the melting temperature of the polyolefin resin but is not higher than the sol-gel transition temperature in heating; and a polyolefin resin molding obtainable by this molding method.
摘要:
A water soluble polymer comprising from about 25 weight % to about 90 weight % of an unsaturated carboxylic acid/unsaturated carboxylic acid ester terpolymer, from about 10 weight % to about 75 weight % of a divalent ion inhibitor and from about 0 weight % to about 10 weight % of a plasticizer is soluble in an aqueous environment having a divalent ion concentration less than about 50 ppm and a monovalent ion concentration of less than about 0.5 weight %. Also disclosed is a water dispersible fibrous fabric having a fibrous substrate and an effective amount of the binder distributed on the substrate and a method of making a water dispersible fibrous fabric.
摘要:
The invention relates to polymer compositions of improved haze and clarity comprising a nucleating agent of formula (I), with n = 1 or 2, and wherein residues R 1 and R 2 are independently selected from unsubstituted or substituted phenyl groups or from unsubstituted or substituted 5- or 6-membered heteroaryl groups, and wherein R 3 is a functional group, e.g. a carboxyiic acid group, an amide group or a hydrazide group.