Polyarylether ketone compositions and method of coating a metal surface

Patent metadata

Field	Value
Publication number	US-2019031908-A1
Application number	US-201716082846-A
Country	US
Kind code	A1
Filing date	Mar 3, 2017
Priority date	Mar 9, 2016
Publication date	Jan 31, 2019
Grant date	—

Abstract

A polyaryl ether ether composition(C) and methods of uses thereof are herein disclosed. The composition comprises a polymer blend [blend (B)] consisting of: —a first polyaryl ether ketone (PAEK-1)and —a second polyaryl ether ketone (PAEK-2), wherein the (PAEK-1) is crystalline and exhibits a melting temperature T m of 330 ° C. or higher and the (PAEK-2) is either amorphous or crystalline and exhibits a melting temperature T m of 315 ° C. or lower and wherein the (PAEK-1) constitutes more than 0% wt of blend (B). Composition (C) can be used in particular for the manufacture of coated metal surfaces, in particular for the coating of wires or of (part of) electronic devices.

First claim

1 . A method of coating a metal surface, said method comprising applying to a metal surface a polymer composition comprising a polymer blend [blend (B)] consisting of:
a first polyaryl ether ketone (PAEK-1) and a second polyaryl ether ketone (PAEK-2), wherein the (PAEK-1) is crystalline and exhibits a melting temperature Tm of 330° C. or higher and the (PAEK-2) is either amorphous or crystalline and exhibits a melting temperature T m of 315° C. or lower and wherein the (PAEK-1) constitutes more than 50% wt of blend (B) and wherein the composition is heated to a temperature higher than the melting temperature of (PAEK-1) before being applied to the metal surface.

2 . The method according to claim 1 wherein the (PAEK-1) comprises recurring units (R1), wherein at least 50% moles of said recurring units comply with at least one of the formulae (J-A)-(J-Q) here below:

wherein:
each of R′, equal to or different from each other, is selected from the group consisting of halogen, alkyl, alkenyl, alkynyl, aryl, ether, thioether, carboxylic acid, ester, amide, imide, alkali or alkaline earth metal sulfonate, alkyl sulfonate, alkali or alkaline earth metal phosphonate, alkyl phosphonate, amine and quaternary ammonium;
j′ is zero or is an integer from 1 to 4 and
Y′ is an alkylidene group.

3 . The method according to claim 2 wherein at least 50% moles of recurring units (R1) are units of formula (J-A), (J-B), (J-C) or (J-O).

4 . The method according to claim 2 or 3 , wherein the phenylene moieties in recurring units (R1) have 1,4- linkages.

5 . The method according to any one of claims 2 to 4 wherein j′ is at each occurrence zero.

6 . The method according to claim 5 comprising at least 98% moles of recurring units complying with formula (J′-A) here below:

7 . The method according to any one of claims 1 to 4 wherein the (PAEK-2) comprises at least 50% moles of recurring units (R2) complying with at least one of formulae (J-A)-(J-Q) as defined in claim 2 , wherein in units (J-A), (J-B) and (J-Q) the phenylene moieties have independently 1,3- and 1,4- linkages, while in units (J-C)-(J-P) the phenylene moieties have 1,4-linkages.

8 . The method according to claim 7 wherein j′ is at each occurrence zero.

9 . The method according to claim 1 in which blend (B) is a blend (B-1) comprising:
a (PAEK-1) which is a polyether ether ketone comprising at least 98% moles of recurring units of formula (S-A):

a (PAEK-2) wherein at least 50% moles of the recurring units are a combination of units of formula (J′-B) and (J″-B), a combination of units of formula (J′-A) and (J′-D), units of formula (J′″-A), units of formula (J′-P), or a combination of units of formulas (J′-A) and (J″-A), said units complying with the formulas here below:

10 . The method according to claim 9 in which blend (B-1) is selected from:
1) a blend (B-1a), comprising:
a (PAEK-1) wherein all recurring units are units of formula (J′-A) and
a (PAEK-2) wherein all recurring units are a combination of units of formulas (J′-B) and (J″-B);
2) a blend (B-1b), comprising:
a (PAEK-1) wherein all recurring units are units of formula (J′-A) and
a (PAEK-2) wherein all recurring units are a combination of units (J′-A) and (J′-D)
3) a blend (B-1c), comprising:
a (PAEK-1) wherein all recurring units are units of formula (J′-A) and
a (PAEK-2) wherein all the recurring units are recurring units of formula (J′-P);
4) a blend (B-1d), comprising:
a (PAEK-1) wherein all recurring units are units of formula (J′-A) and
a (PAEK-2) in which at least 50% moles of the recurring units are recurring units (J′″-A);
5) a blend (B-1e), comprising:
a (PAEK-1) which is a PEEK wherein at least 98% moles of the recurring units are units of formula (J′-A) and
a (PAEK-2) which is a PAEK in which at least 95% moles of the recurring units are recurring units (J′-A) and (J″-A)

11 . The method according to any one of claims 1 to 10 wherein the polymer composition comprises a reinforcing filler.

12 . The method according to claim 1 in which blend (B) is a blend (B-2) comprising a (PAEK-2) which is a PAEK wherein
at least 50% moles of recurring units comply with formula (J″-A) or (J″-Q) here below:

13 . The method according to claim 11 in which blend (B-2) comprises a (PAEK-1) in which at least 50% moles of the recurring units comply with formula (J′-A),with a combination of units (J′-B) and (J″-B) or with formula (J′-C) here below:

14 . The method according to claim 13 in which blend (B-2) is selected from:
1) a blend (B-2a), comprising:
a (PAEK-1) which is a PEEK wherein at least 98% moles of the recurring units are units of formula (J′-A) and
a (PAEK-2) which is a PAEK in which at least 95% moles of the recurring units are recurring units (J″-A);
2) a blend (B-2b), comprising:
a (PAEK-1) which is a PEEK wherein at least 98% moles of the recurring units are units of formula (J′-A) and
a (PAEK-2) which is a PAEK in which at least 95% moles of the recurring units are recurring units (J″-Q).

15 . A polymer composition comprising a polymer blend [blend (B-1)] selected from a blend (B-1a), a blend (B-1c), a blend (B-1d) and a blend (B-1e), as defined in claim 10 or a blend (B-2) as defined in claim 12 .

16 . A polymer composition comprising a polymer blend (B-2a) and (B-2b) as defined in claim 14 .

17 . A metal surface coated with a polymer composition comprising a polymer blend [blend (B)] consisting of:
a first polyaryl ether ketone (PAEK-1) and a second polyaryl ether ketone (PAEK-2), wherein the (PAEK-1) is crystalline and exhibits a melting temperature T m of 330° C. or higher and the (PAEK-2) is either amorphous or crystalline and exhibits a melting temperature T m of 315° C. or lower and wherein the (PAEK-1) constitutes more than 50% wt of blend (B).

18 . The metal surface of claim 17 which is the surface of a wire, or the surface of a structural part of an electronic device.

19 . A wire or an electronic device or a part thereof comprising at least one surface according to claim 17 or 18 .

Assignees

• Solvay Specialty Polymers Usa

Inventors

• Louis Chantal
• El-Hibri Mohammad Jamal
• Hammonds Ryan
• Xia Jiqiang

Classifications

• C09D171/12 Primary

  Polyphenylene oxides · CPC title

• H01B3/36

  condensation products of phenols with aldehydes or ketones · CPC title

• C23C26/00

  Coating not provided for in groups C23C2/00 - C23C24/00 · CPC title

• H01B13/06

  Insulating conductors or cables (H01B13/32 takes precedence) · CPC title

• B29B9/16 Primary

  Auxiliary treatment of granules · CPC title