Low density compositions containing polyether block amides and hollow glass reinforcements and use of same
AssigneeArkema France
InventorsMathieu SABARD, Guillaume VINCENT, Cristian TITTOTO
Life of this patent
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Abstract
A molding composition including by weight: (A) 45% to 90%, particularly 60% to 80%, more particularly 62.5% to 77.5% of at least one copolyamide with amide units (Bal) and polyether units (Ba2), (B) 5% to 30%, particularly 10% to 20%, more particularly 12.5% to 17.5% of carbon fibers, (C) 5% to 20%, particularly 10% to 15% of a hollow glass reinforcement, (D) 0% to 5%, preferably 0.1% to 2% of at least one additive, the sum of the proportions of each constituent (A)+(B)+(C)+(D) of the composition being equal to 100%.
Claims16
A molding composition comprising by weight:
- (A) 45% to 90%,
- (B) 5% to 30%,
- (C) 5% to 20%,
- (D) 0% to 5%,
- the sum of the proportions of each constituent (A)+(B)+(C)+(D) of the composition being equal to 100%.
A method of combining 5 to 20% by weight of a hollow glass reinforcement with at least one PEBA and carbon fibers optionally comprising at least one additive, said PEBA being present in an amount of from 45% to 90% by weight, said carbon fibers being present in an amount of from 5% to 30% by weight and said additive being comprised in an amount of from 0% to 5% by weight, to make up a composition of which the density is less than that of said PEBA used alone with optionally at least one additive, and said density of said composition being less than or equal to 1.02.
Dependencies are inferred from the claim text.