Claims
- 1. A compatible blend of thermotropic liquid crystal polymers comprising:
- (i) at least one main chain thermotropic liquid crystal polymer containing a repeating mesogenic unit in the polymer backbone and corresponding to Formula I,
- (--A--Y--X--Z--).sub.m (I)
- wherein X is A or (CH.sub.2).sub.n ; wherein n is an integer from about 3 to 10; wherein m is an integer from about 5 to 500; wherein Y and Z are either both non-existent or each ##STR37## and wherein A is ##STR38## wherein n is as defined above; and, (ii) at least one side chain thermotropic liquid crystal polymer, compatible with the main chain thermotropic liquid crystal polymer and containing a mesogenic unit and a spacer group of about 3-20 carbons and corresponding to Formula II, ##STR39## wherein A, Y and Z are as defined above in Formula I; wherein S, the spacer group, is (CH.sub.2)n.sub.1, wherein n.sub.1 is an integer from about 3 to 20; wherein P is the repeating unit of the side chain thermotropic liquid crystal polymer backbone; wherein r is an integer from about 5 to 1500; and wherein D is either a C.sub.1 to C.sub.6 aliphatic hydrocarbon or C.tbd.N.
- 2. The blend of claim 1 wherein the backbone of the side chain polymers are selected from the group consisting of acrylic polymeric units, methacrylic units, styrene polymeric units, polyether units, polyester units, polycarbonate polymeric units and polyamide units, and copolymers thereof.
- 3. The blend of claim 1 wherein the main chain polymer is present in an amount of about 10-95 weight percent.
- 4. The blend of claim 1 wherein the main chain polymer is present in an amount of about 50-90 weight percent.
Parent Case Info
This is a continuation-in-part of co-pending application Ser. No. 07/320,355 filed on Mar. 8, 1989 now abandoned which in turn is a continuation of co-pending application Ser. No. 111,179 filed on Oct. 22, 1987 now U.S. Pat. No. 4,842,754.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
4807968 |
Leslie et al. |
Feb 1989 |
|
4842754 |
Hakemi et al. |
Jun 1989 |
|
Foreign Referenced Citations (2)
Number |
Date |
Country |
2585024 |
Jan 1987 |
FRX |
63260959 |
Oct 1988 |
JPX |
Non-Patent Literature Citations (1)
Entry |
Dowell, F., Mol. Cryst. Liq. Cryst. 157, 203-27, 1988. |
Continuations (1)
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Number |
Date |
Country |
Parent |
111179 |
Oct 1987 |
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Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
320355 |
Mar 1989 |
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