Claims
- 1. A process for the preparation of ordered linear injection moldable polyamide-imide polymers which process comprises reacting fully acylated aliphatic, cycloaliphatic or araliphatic diamines with tricarboxylic acid anhydrides compounds and aliphatic, cycloaliphatic or araliphatic diamines in a molar ratio of about 1.1:2:0.9 to 0.9:2:1.1 at a temperature of about 100 to 700 Fahrenheit.
- 2. The process of claim 1 wherein free amine functionality is reacted with the tricarboxylic acid anhydride prior to reaction of the acylated amine functionality.
- 3. The process of claim 2 wherein the tricarboxylic acid anhydride compound is trimellitic anhydride and the polyamide-imides are crystalline.
- 4. The process of claim 3 wherein the diacylated diamine is selected from one of the following: N,N'-diacetyl-1,6-hexanediamine, N,N'-diacetyl-1,4-butanediamine, N,N'-diacetyl-1,8-diamineoctane, N,N'-diacetyl-1,10-diaminedecane, N,N'-diacetyl-1,12-diaminedodecane.
- 5. The process of claim 4 wherein the aliphatic diamine is selected from one of the following: 1,6-diaminohexane, 1,2-diaminoethane, 1,4-diaminobutane, 1,8-diaminooctane, 1,10-diaminodecane, 1,12-diaminododecane.
- 6. The polymer produced according to claim 1 wherein the polymer is in the form of a molded object.
- 7. The polymer produced according to claim 1 wherein the polymer is in the form of a fiber.
- 8. The polymer produced according to claim 5 wherein the polymer is in the form of a molded object.
- 9. The polymer produced according to claim 5 wherein the polymer is in the form of a fiber.
- 10. The process of claim 1 wherein talc is added as the nucleating agent in about 0.01 to 10.0 weight percent of the total polymer.
- 11. The process of claim 3 wherein talc is added in about 0.01 to 10.0 weight percent of the total polymer.
- 12. The composition of claim 8 wherein the molded object contains from about 20 to about 60 weight percent of glass fibers, glass beads, mineral filler or a mixture thereof.
Parent Case Info
This application is a continuation-in-part of Application Ser. No. 112,650, filed Jan. 16, 1980 and now abandoned.
US Referenced Citations (6)
Foreign Referenced Citations (1)
Number |
Date |
Country |
570858 |
Jul 1945 |
GBX |
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
112650 |
Jan 1980 |
|