Process for the manufacture of in situ polymer alloys and microc

Details Process for the manufacture of in situ polymer alloys and microc Process for the manufacture of in situ polymer alloys and microc

1993-08-20

1994-05-17

Seidleck, James J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525436, 525183, 525184, C08L 7710, C08L 7702

Patent

active

053128753

ABSTRACT:
A polymer mixture reinforced by an in situ, melt-polymerized microphase whereby the rigidity of the base material is increased, a process for manufacturing same, and use thereof for providing reinforced compositions and articles in which the polymer mixture is prepared by polymerizing a component B in a melt of a component A composed of at least one thermoplastic polymer. Component B is composed of at least one compound having the structure ##STR1## The reaction of component B in a melt of component A results in linear, branched or cross-linked, high or low molecular weight polymers constituting a microphase. Preferably, the microphases have the form of microfibers. In the structure of component B, X is NH.sub.2, NHR.sup.3, OH or an N-substituted, Y-activated lactam of the ##STR2## type which is activated with an electrophilic substituent Y, where Y is CO, SO.sub.2, or R.sup.5 P=O; R.sup.1, R.sup.2 and R.sup.4 are bivalent or multivalent aliphatic-, aromatic-, heterocyclic- or heteroatom-containing segments, with R.sup.2 and R.sup.4 preferably being bivalent aliphatic or aromatic radicals (CH.sub.2).sub.z in which 1<z<15; R.sup.3 and R.sup.5 are aliphatic, cycloaliphatic or aromatic radicals; and n and m are integers for which 1<m and n<5, and preferably m=n=1.

REFERENCES:
L. Mathias, et al. J. Polym. Science Polym. Chem., v25 2699-2709 (1987).
Moore et al., "Molecular Composites via In Situ Polymerization: Poly(Phenylene Terephthalamide)-Nylon 3," Journal of Applied Polymer Science, vol. 32 (1986), pp. 6299-6315.
Sikes et al., "Synthesis and Characterization of In Situ Anionically Polymerized P-Aminobenzoylcaprolactam Using Di- and Tri-Functional Initiator Systems," Polymer Bulletin 18 (1987), pp. 397-401.
Takayanagi et al., "Polymer Composites of Rigid and Flexible Molecules: System of Wholly Aromatic and Aliphatic Polyamides", J. Macromol. Sci.-Phys., B17(4), 591-615 (1980).
Mathias et al., "Polymerization of N-(p-aminobenzoyl) caprolactam: Block and alternating Copolymers of Aromatic and Aliphatic Polyamides", J. Polymer Science, Pt. A: Polymer Chemistry, vol. 25 2699-2709 (1987).

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