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US 12,714,091 B2Granted
Polyamide compositions
AssigneeCelanese Polymers Holding, Inc.
InventorMasahiro Nozaki
Life of this patent
Estimating the term…
Abstract
Provided herein are polyamide compositions having desirable flow properties, for example low viscosity, which is useful for molding small components. The polyamide compositions comprise a polyamide comprising 1,10-decanediamine terephthalamide (10T) repeating units; a copolyamide comprising repeating units derived from terephthalic acid and from a diamine containing 6 or fewer carbon atoms; a reinforcing agent; and optionally, one or more of a flame retardant, a flame retardant synergist, and a lubricant.
Claims11
A polyamide composition comprising:
- A) 10 to 80 wt % of a 1,10-decanediamine terephthalamide (10T) homopolymer;
- B) 0.5 to 40 wt % of a copolyamide comprising repeating units derived from terephthalic acid and from a diamine containing 6 or fewer carbon atoms, wherein the copolyamide comprises repeating units derived from hexamethylene decanediamide;
- C) 0 to 25 wt % of a flame retardant;
- D) 0 to 5 wt % of at least one flame retardant synergist;
- E) 1 to 40 wt % of a reinforcing agent;
- F) 0 to 2 wt % of a lubricant;
- and
- G) 0 to 25 wt % of one or more additional additives;
- wherein the weight percentages are based on the total weight of the polyamide composition;
- and wherein the sum of the weight percentages of components (A), (B), (C), (D), (E), (F), and (G) in the polyamide composition is 100 wt %.
7 more elements
A polyamide composition comprising:
- A) 25 to 65 wt % of 1,10-decanediamine terephthalamide (10T) homopolymer, said polyamide having a melt index ranging from about 40 to 80 g/10 min as measured at 330° C. and at 1.2 kg load according to ISO1133-1:2011;
- B) 2 to 20 wt % of a copolyamide comprising repeat units derived from terephthalic acid and from a diamine containing 6 or fewer carbon atoms, wherein the copolyamide comprises repeating units derived from hexamethylene decanediamide;
- C) 10 to 25 wt % of a flame retardant;
- D) 0.1 to 5 wt % of at least one flame retardant synergist;
- E) 10 to 45 wt % of a reinforcing agent;
- F) 0.01 to 1 wt % of a lubricant;
- and
- G) 0 to 25 wt % of one or more optional additional additives;
- wherein the total amount of component (A) and component (B) is 30 to 65 wt %;
- wherein the ratio of the weight of component (B) to the total weight of (component (A)+component (B)) calculated as wt % is 5 to 30;
- wherein the weight percentages of each component (A), (B), (C), (D), (E), (F), and (G) are based on the total weight of the polyamide composition;
- and wherein the sum of the weight percentages of components (A), (B), (C), (D), (E), (F), and (G) in the polyamide composition is 100 wt %.
9 more elements
Dependencies are inferred from the claim text.