摘要:
The present invention relates to a multilayer hose for compressed air, comprising, in this order, a polyamide outer layer (1); optionally, an intermediate layer (2) of a polymer having a flexural modulus of less than 500 MPa; and an inner layer (3) of a polymer having a flexural modulus greater than 1100 MPa, the inner layer (3) being in contact with the compressed air.
摘要:
The present invention relates to amorphous transparent copolyamides of formula: PACM.T / D.X / X1.Y1 resulting from the condensation of PACM, terephtalic acid, a diamine D, a diacid X, a diamine X1 and a diacid Y1 in which : PACM denotes the p-bis(aminocyclohexyl)methane, T denotes terephtalic acid, D denotes a diamine chosen from aromatic, arylaliphatic and cycloaliphatic diamines, X denotes a diacid HOOC-(CH2)n-COOH having from 8 to 20 carbon atoms, XI denotes an aliphatic diamine, Y1 denotes a diacid HOOC-(CH2)n-COOH having from 6 to 20 carbon atoms, the mol proportion of PACM.T is such as (PACM.T)/(PACM.T+D.X) is above 0.5, and can be increased to 1 , the mol proportion of X1 is between 16% and 38%, X1.Y1 can be replaced partly or totally by Z, a lactam or an alpha-omega aminocarboxylic acid, having from 9 to 20 carbon atoms, and in this case the mol proportion of Z is between 33% and 75%.
摘要:
The invention features a thermoplastic composition comprising at least one matrix forming polymer (M) in which are dispersed nodules of at least one polymer (K) encapsulated in at least one polymer (S) such that these encapsulated nodules are smaller than the polymer nodules (S) dispersed in the matrix (M).
摘要:
The invention features a thermoplastic composition comprising at least one matrix forming polymer (M) in which are dispersed (K) nodules, (K) nodules wholly or partially packaged in at least one polymer (S) and (S) nodules and such that the (K) nodules wholly or partially packaged are smaller than the (S) nodules.