摘要:
A thermoplastic resin composition, which comprises (a) from 5 to 85 parts by weight of a melted or remelted preliminary molding compound consisting of from 60 to 98 parts by weight of polyphenylene ethers, 40 to 2 parts by weight of polyoctylenes, from 0.1 to 5 parts by weight of maleic anhydride and from 0.1 to 5 parts by weight of a further acid derivative which has a melting point below 100.degree. C. and which is selected from the group consisting of an unsaturated mono- or dicarboxylic acid having up to 14 carbon atoms, an anhydride thereof, which excludes maleic anhydride, and an ester of mono- or dicarboxylic acid with an alcohol of up to 6 carbon atoms; and (b) from 95 to 15 parts by weight of an aliphatic homopolyamide or a copolyamide containing a preponderant amount of aliphatic monomer units.
摘要:
A molding composition having cold impact strength and amenable to thermoplastic processing, comprises(A) 66-95% by weight of polybutylene terephthalate with a viscosity number (J) of 70 to 240 cc/g and(B) 34-5% by weight of a reaction product of1. 99-75% by weight of an ethylene/.alpha.-olefin/diene terpolymer having a Mooney viscosity in the range from 30 to 130 and2. 1-25% by weight of bicyclo[2,2,2]-2,3;5,6-dibenzooctadiene-(2,5)-dicarboxylic acid-(7,8)-anhydride.
摘要:
Improved molding compositions based on high-molecular polyether ester amides are obtained by heating at 180.degree.-250.degree. C. a melt containing a mixture ofA. a polyether ester amide having a relative solution viscosity .eta..sub.rel of at least 1.5; andB. 0.05-1.5 parts by weight, based on 100 parts by weight of the molding composition, of a cyclic, trimerized isophorone diisocyanate or an oligomer thereof having a degree of oligomerization of 2-5 and an isocyanate functionality of 3-7.
摘要:
Improved molding compositions based on high-molecular polyalkylene terephthalates are obtained by heating at 240.degree.-300.degree. C. a melt containing a mixture of(A) a polyalkylene terephthalate having a viscosity number J of at least 50 cm.sup.3 /g, and(B) 0.05-2.5 parts by weight, based on 100 parts by weight of the molding composition of a cyclic, trimerized isophorone diisocyanate or an oligomer thereof with a degree of oligomerization of 2-5 with an isocyanate functionality of 3-7.
摘要:
The invention relates to a process for the production of molding compositions from a thermoplastic polycondensation resin susceptible to degradation at high temperature in the presence of H.sub.2 O, to which is admixed a second synthetic resin, present as an aqueous latex, at temperatures in the range of 150.degree.-300.degree. C. and under a pressure in the range of 1-100 bar under the effect of high shear forces, for a time sufficient to provide the desired molding composition without substantially degrading the polycondensation resin.
摘要:
A process for bonding a polyamide containing thermoplastic material and a rubber, comprising covulcanizing, in the presence of a vulcanization system, a thermoplastic component which contains at least 30% by wt. of an aliphatic polyamide and a rubber composition which, based on 100 parts by weight of a carboxyl group-containing rubber, contains 100-300 parts by wt. of fillers, and 1-10 parts by wt. of peroxidic vulcanizing agents.
摘要:
The invention relates to a process for the production of molding compositions from a thermoplastic polycondensation resin susceptible to degredation at high temperature in the presence of H.sub.2 O, to which is admixed a second synthetic resin, present as an aqueous latex, at temperatures in the range of 150.degree.-300.degree. C. and under a pressure in the range of 1-100 bar under the effect of high shear forces, for a time sufficient to provide the desired molding composition without substantially degrading the polycondensation resin.
摘要:
Changing a business process model involves several aspects: (1) given a set of change operations, dependencies and conflicts are encoded in dependency and conflict matrices; (2) given a change sequence for a process model M, the change sequence is broken up into subsequences such that operations from different subsequences are independent; (3) given a change sequence for a process model V1 and another change sequence for a process model V2, conflicts between operations in the different change sequences are determined; (4) the process structure tree can be used to localize dependency computations, yielding a more efficient approach to determining dependencies; and (5) the process structure tree can be used to localize conflict computations, yielding a more efficient approach to determining conflicts.
摘要:
A leno device for use in weaving machines. The leno device having a first lifting shaft, a second lifting shaft and a half shaft. The shafts are connected with each other via a linkage mechanism having several transmission units Each transmission unit having a connecting bar and two guide rods. In order to prevent fingers and or the hand of the operator from being pinched between the connecting bar and one of the levers, the leno device has a separate cover part for each transmission unit. The cover part may be fastened to one of the lifting shafts or to one of the guide rods of the transmission unit, or to the connecting bar. The cover part prevents an operator from being able to reach between the connecting bar and the guide rods in warp thread direction.