Anisotropic copoly(imide oxetane) coatings and articles of manufacture, copoly(imide oxetane)s containing pendant fluorocarbon moieties, oligomers and processes therefor
First Claim
1. An oligomer represented by the formula:
-
(E)yR1—
C(O)—
O-J-C(O)—
R1(E)y wherein;
J is [CH2—
CR2R3—
CH2—
O]m or[(CH2—
CR2R3—
CH2—
O)p—
(R6—
O)q—
(CH2—
CR2R3—
CH2—
O)r] wherein R6 is substituted or unsubstituted aliphatic or aromatic moiety of 2 to 16 carbons;
E, which is the same or different, is —
NO2 or —
NH2;
y is 1 or 2;
R1, which is the same, is aromatic hydrocarbon moiety of 1 to 10 carbon atoms;
m is between about 4 and 500, p is between about 4 and 150, q is between about 1 and 150, and r is an integer; and
either R2 is —
F; and
R3, which is the same or different, is chosen from —
F, —
R4H(n-a)Fa, —
R5—
O—
R4H(n-a)Fa, and —
O—
R4H(n-a)Fa, wherein R4 is an alkyl or ether moiety of 1 to 30 carbons, R5 is an alkyl moiety of 1 to 30 carbons, a is an integer of 3 to n, and n is twice the number of carbon atoms in the alkyl moiety plus 1;
orR2, which is the same or different, is —
H, —
F, or alkyl of 1 to 6 carbon atoms; and
R3, which is the same or different, is chosen from —
F and —
O—
R4H(n-a)Fa, wherein R4 is an alkyl or ether moiety of 1 to 30 carbons, a is an integer of 3 to n, and n is twice the number of carbon atoms in the alkyl moiety plus 1.
2 Assignments
0 Petitions
Accused Products
Abstract
Copoly(imide oxetane) materials are disclosed that can exhibit a low surface energy while possessing the mechanical, thermal, chemical and optical properties associated with polyimides. The copoly(imide oxetane)s are prepared using a minor amount of fluorinated oxetane-derived oligomer with sufficient fluorine-containing segments of the copoly(imide oxetane)s that migrate to the exterior surface of the polymeric material to yield low surface energies. Thus the coatings and articles of manufacture made with the copoly(imide oxetane)s of this invention are characterized as having an anisotropic fluorine composition. The low surface energies can be achieved with very low content of fluorinated oxetane-derived oligomer. The copolymers of this invention can enhance the viability of polyimides for many applications and may be acceptable where homopolyimide materials have been unacceptable.
-
Citations
11 Claims
-
1. An oligomer represented by the formula:
-
(E)yR1—
C(O)—
O-J-C(O)—
R1(E)ywherein; J is [CH2—
CR2R3—
CH2—
O]m or[(CH2—
CR2R3—
CH2—
O)p—
(R6—
O)q—
(CH2—
CR2R3—
CH2—
O)r] wherein R6 is substituted or unsubstituted aliphatic or aromatic moiety of 2 to 16 carbons;E, which is the same or different, is —
NO2 or —
NH2;y is 1 or 2; R1, which is the same, is aromatic hydrocarbon moiety of 1 to 10 carbon atoms; m is between about 4 and 500, p is between about 4 and 150, q is between about 1 and 150, and r is an integer; and either R2 is —
F; andR3, which is the same or different, is chosen from —
F, —
R4H(n-a)Fa, —
R5—
O—
R4H(n-a)Fa, and —
O—
R4H(n-a)Fa, wherein R4 is an alkyl or ether moiety of 1 to 30 carbons, R5 is an alkyl moiety of 1 to 30 carbons, a is an integer of 3 to n, and n is twice the number of carbon atoms in the alkyl moiety plus 1;
orR2, which is the same or different, is —
H, —
F, or alkyl of 1 to 6 carbon atoms; andR3, which is the same or different, is chosen from —
F and —
O—
R4H(n-a)Fa, wherein R4 is an alkyl or ether moiety of 1 to 30 carbons, a is an integer of 3 to n, and n is twice the number of carbon atoms in the alkyl moiety plus 1. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
Specification