摘要:
Disclosed is a thermoplastic composition including (A) a polyamide resin independently selected from the group consisting of Group (I) Polyamides having a melting point of at least 260 °C, and comprising (a) greater than 95 mole percent semiaromatic repeat units and (b) less than 5 mole percent aliphatic repeat units; (B) 0 to 60 weight percent of one or more reinforcement agents; and (C) 0 to 50 weight percent of one or more a polymeric tougheners; wherein the weight percentages are based on the total weight of said thermoplastic composition; and wherein said polyamide resin has at least 50 meq/Kg of acid ends.
摘要:
Disclosed is a polyamide composition including at least one semi-aromatic copolyamide, said semi-aromatic copolyamide consisting essentially of 40 to 60 mole percent repeat units of the formula -C(O)(CH2)4C{O)NHCH2ArCH2NH- (I) and 40 to 60 mole percent repeat units of the formula -C(O)(CH2)4C(O)NH(CH2)6NH- (II) wherein Ar is a meta-substituted benzene ring. Also disclosed are molded articles including the polyamide composition.
摘要:
Disclosed is a polyamide composition including at least one semi-aromatic copolyamide, said semi-aromatic copolyamide consisting essentially of about 25 to about 55 mole percent repeat units of the formula -C(O)(CH2)mC(O)NHCH2ArCH2NH- (I) and about 45 to about 75 mole percent repeat units of the formula -C(O)(CH2)mC(O)NH(CH2)nNH- (II) wherein m is 8, 10, and/or 12, n is 6, 10 and/or 12 and Ar is a meta-substituted benzene ring; and wherein said polyamide has a melting point equal to or less than 225 °C. Also disclosed are molded articles including the polyamide composition.
摘要:
Disclosed is a polyamide composition including at least one semi-aromatic copolyamide, said semi-aromatic copolyamide consisting essentially of 40 to 60 mole percent repeat units of the formula -C(O)(CH 2 ) 4 C{O)NHCH 2 ArCH 2 NH- (I) and 40 to 60 mole percent repeat units of the formula -C(O)(CH 2 ) 4 C(O)NH(CH 2 ) 6 NH- (II) wherein Ar is a meta-substituted benzene ring. Also disclosed are molded articles including the polyamide composition.
摘要翻译:公开了一种具有树脂层的铜箔,其能够在铜箔不进行粗糙化处理的铜箔的挠性印刷线路板的树脂基板中确保铜箔与基材树脂层的良好的粘合性。 具体公开了具有树脂层的铜箔,其特征在于,不进行粗糙化处理的铜箔和含有具有式(1)所示结构的含酚羟基的芳香族聚酰胺树脂的树脂层, 下面直接粘合在一起。 (1)(式(1)中,m和n平均满足0.005 = n /(m + n)<0.05,m + n为2〜200; Ar 1表示二价 芳基; Ar 2表示具有酚羟基的二价芳基; Ar 3表示二价芳基)。
摘要:
An amine aqueous solution for forming an active layer of a polyamide reverse osmosis composite membrane is prepared, which consists of 0.1 through 20weight% of polyfunctional aromatic amine monomer, 0.1 through 20weight% of multifunctional tertiary alcohol amine, 0.1 through 20weight% of strong acid, and 40 through 99.7weight% of water.
摘要:
A method of making polybenzobisoxazole containing polymer by use of a non-polybenzobisoxazole polymer, hydroxylating the polymer, forming a solidified polymer and heating the solidified polymer wherein ring closure occurs in the hydroxylated polymer.
摘要:
Optically anisotropic films based on sulfoderivatives of 1,8- naphthoylene-1',2'-benzimidazole are disclosed. These compounds form stable lyotropic liquid crystal systems that exhibit excellent optical properties with films that are significantly thinner that the current state of the art. The lyotropic liquid crystal systems may be deposited on substrates for use in a wide variety of commercial applications.
摘要:
Process for providing a binder for mineral fibers, comprising the steps of: mixing together under reactive conditions an amine and an anhydride whereby water is added thereto, once substantially all the anhydride is dissolved and/or reacted in the amine.
摘要:
This invention relates to a branched fractal three dimensional polymer species which comprises rigid aromatic recurring units having electrophilic or nucleophilic reactive moieties on the exterior thereof. Another aspect of this invention relates to a star polymer comprising a polymeric core formed of the fractal polymers (FPS) of this invention having linear polymeric moieties grafted to an exterior thereof by way of residues formed by reaction between the reactive moieties on the exterior of the fractal polymer (FP) and complementary reactive moieties on a linear polymer. Yet another aspect of this invention relates to polymeric composites comprising a polymer matrix having dispersed therein the star polymers of this invention. Still another embodiment of this invention relates to polymeric networks comprising at least two polymeric cores formed from the fractal polymers of this invention which are bonded together by linking polymeric moieties grafted to the exterior of said at least two polymeric cores by way of residues formed by variation reaction between reactive moieties on the exterior of the fractal polymer and complementary reactive moieties on a linking polymer.