摘要:
The present invention relates to a thermoplastic composition with improved hydrolytic stability, comprising: 30 to 50 percent by weight of a polybutylene terephthalate (PBT) having a carboxylic end group concentration (CEG) of 40 to 120 mmol/kg and an intrinsic viscosity of 0.63 to 0.68 dl/g as measured in a 60:40 phenol/tetrachloroethane; 0.01 to 0.1 percent by weight of a catalyst; 0.01 to 5 percent by weight of an epoxy chain extender; wherein all weight percents are based on the total weight of the composition.
摘要:
The present invention relates firstly to a polyester resin bearing at least two functions from among hydroxyl and/or carboxyl functions, based on: A) a polyol component comprising a1) at least one diol bearing at least two lateral C 2 to C 4 alkyl substituents, a2) at least one diol bearing at least one lateral methyl substituent, a3) at least one C 2 to C 6 diol bearing no lateral substituent, a4) optionally at least one polyol of functionality >2 and on B) a polyacid component comprising b1) at least one aromatic diacid, b2) at least one C 4 to C 10 linear aliphatic diacid, b3) optionally, at least one cycloaliphatic diacid, said resin being free of any unsaturated fatty monoalcohol or monoacid. The invention also covers the resin in solution in an organic solvent, crosslinkable compositions comprising said resin, in particular for coatings of metal foils ("coils"), the associated use and the coating as final product resulting from said use.
摘要:
The present invention relates to a process for preparation of polyester resin in the presence of a novel catalyst system comprising an antimony compound and inorganic tin compound. The present invention also relates to a catalyst system for the preparation of polyester comprising an antimony compound and inorganic tin compound which reduces the polymerization time at all stages of polyester synthesis and reduces the generation of degradation product. This invention further relates to polyester resin with improved L color having significant importance in end-use applications.
摘要:
An unsaturated polyester resin composition comprising an unsaturated polyester, a reactive monofunctional (meth)acrylate monomer or oligomer; a reactive multifunctional (meth)acrylate monomer; wherein the resin composition is substantially free of styrene and acetoacetate functional monomers.
摘要:
Co-polyester resin compositions and processes for manufacturing resin compositions are provided, said resin compositions being suitable for extrusion blow molding for the manufacture of containers with good color, clarity for both food, non-food applications and other applications such as profile extrusions and manufacture of blown films which require high melt strength polyester.
摘要:
A toner including a binder resin containing an ester bond, and a releasing agent, wherein the releasing agent includes first C30-C50 alkyl monoester compound and second C30-C50 alkyl monoester compound, wherein the number of carbon atoms of the first C30-C50 alkyl monoester compound is different from that of the second C30-C50 alkyl monoester compound, wherein the amount of the first C30-C50 alkyl monoester compound is largest and the amount of the second C30-C50 alkyl monoester compound is second largest or same as the amount of the first C3OC50 alkyl monoester compound, wherein the amount of the first C30-C50 alkyl monoester compound is 30% by mass or more but less than 50% by mass to the releasing agent, and wherein the amount of the second C30-C50 alkyl monoester compound is 10% by mass or more but less than 50% by mass to the releasing agent.
摘要:
The disclosure is directed to the use of dynamic cross-linked polymer compositions in soldering applications. Workpieces comprising a solder bonded to at least one component comprising a dynamic cross-linked polymer composition are also described.
摘要:
The present invention provides a compound of the formula (I) :
wherein, R 1 is a hydrogen atom or a hydrocarbon group; R 2 is -R 4 -R 5 ; R 3 is -R 4 -R 5 or -R 4 -R 6 ; R 4 is a divalent organic group; R 5 is OH, SH, COOH or NHR 9 ; R 9 is a hydrogen atom or an alkyl group having 1-6 carbon atoms; and R 6 is a hydrogen atom or an alkyl group having 1-6 carbon atoms.