摘要:
The invention provides a method of preparing a stable enzyme-thinned starch dispersion characterized by a selected degree of thinning including the steps of: (a) combining a derivatized granular starch with an alpha-amylase enzyme to form a starch/enzyme slurry; (b) passing said starch/enzyme slurry through a jet cooker under conditions selected to gelatinize the starch; (c) treating the starch/enzyme slurry to complete gelatinization and achieve the selected degree of thinning such that the concentration of starch hydrolyzate product having a molecular weight greater than 1,000,000 daltons is 5 % or greater; and (d) deactivating the enzyme.
摘要:
A thermosetting composition comprising a co-reactable solid, particulate mixture of (a) beta-hydroxyalkylamide cross-linking agent, e.g., bis(N,N-di-2-hydroxyethyl)adipamide, and (b) polycarboxylic acid functional polymer, is described. The polycarboxylic acid functional polymer is prepared by atom transfer radical polymerization and has well defined polymer chain architecture and polydispersity index of less than 2.5. The thermosetting compositions of the present invention have utility as powder coatings compositions.
摘要:
A water-based surface-treating agent for metallic materials which gives a film highly satisfactory in corrosion resistance, blackening resistance, wet secondary adhesion to topcoatings, low-pollution characteristics (amount of fixed chromium), chemical resistance (especially acid resistance and alkali resistance), etc., while retaining the intact practical liquid stability of conventional chromate-containing resinous coating agents. The water-based surface-treating agent comprises a synthetic resin emulsion and hexavalent chromium ions and has a pH of 5 or lower, the synthetic resin emulsion being one obtained by emulsion-polymerizing the following ingredients using a nonionic polymerizable emulsifier and a nonionic nonpolymerizable emulsifier: (1) an ethylenic carboxylic acid, (2) a functional acrylic monomer having at least one of N-((un)substituted methylol)carbamoyl, phosphonate, alkoxy, cyano, and carbamoyl groups, and (3) a third monomer which is different from the ingredients (1) and (2) and forms the skeleton of the copolymer to be obtained.
摘要:
An antifouling paint composition containing, as a vehicle, a copolymer of a monomer mixture of a metal-containing polymerizable monomer (a1) having two unsaturated groups and another metal-containing polymerizable monomer (a2) represented by general formula (I), and also an antifouling agent, wherein R represents hydrogen or methyl; M represents Mg, Zn or Cu; and R represents an organic acid residue; and another antifouling paint composition containing, as a vehicle, a copolymer of a monomer mixture of a metal-containing polymerizable monomer (a) and a polymerizable monomer (b) represented by general formula (II), and also an antifouling agent, wherein R represents hydrogen or methyl; R represents an alkyl having 1 to 10 carbon atoms, cycloalkyl or phenyl; and R represents an alkyl having 1 to 10 carbon atoms, cycloalkyl or phenyl.
摘要翻译:一种防污涂料组合物,其含有具有两个不饱和基团的含金属的可聚合单体(a1)和通式(I)表示的另一种含金属的可聚合单体(a2)的单体混合物的共聚物作为载体,以及 防污剂,其中R 1表示氢或甲基; M表示Mg,Zn或Cu; R 2表示有机酸残基; 和含有含有金属的可聚合单体(a)和由通式(II)表示的可聚合单体(b))的单体混合物的共聚物作为载体的另一种防污涂料组合物,还含有防污剂,其中R 3表示氢或甲基; R 4代表具有1-10个碳原子的烷基,环烷基或苯基; R 5表示碳原子数1〜10的烷基,环烷基或苯基。
摘要:
Reaction products have more than 1,500 molecular weight and are produced by reacting: A) fats having 1 to 10, preferably 1.5 to 6 units of at least one of the functional groups -OH, -COOH, -SH, -NH2, -C=C-, an epoxide group or an acid anhydride group in the fat radical, the fat containing at least 1 % by moles of at least three-functional fats, with B) at least one mono- or multifunctional compound capable of reacting with the functional groups of the fats. The reaction products are preferably dispersed as liquids in water. These binders are suitable for coating, sealing and binding, in particular gluing, alone or combined with known glues and polymer dispersions. Glue dispersions, pressure-sensitive masses, universal glues and glue sticks may in particular be produced from these binders.
摘要:
An alcohol based, water soluble binder composition for nonwoven material made from water swellable, water soluble or water sensitive fibers and related substances is provided comprising a substantially anhydrous solution of an acrylic polymeric resin, and an alcohol diluent. The water soluble binder composition effectively binds water swellable, water soluble or water sensitive fibers into a nonwoven material such as a fabric; the nonwoven material comprising a nonwoven web of a water swellable, soluble or sensitive fiber component.
摘要:
Coating composition, uses and methods for making a substrate frost resistant The present invention pertains to the use ofa coating composition comprising: -at least one polymer (ZW) comprising zwitterionic repeating units derived from at least one zwitterionic monomer (A), -at least one polymer (CA) different from polymer (ZW) comprising repeating units derived from at least one carboxylic acid and/or carboxylic anhydride containing monomer (B), and -at least one crosslinking agent (CL). The invention also pertains to the use ofsaid coating composition (C) for making frost resistant a substrate and to articles coated with composition (C).