Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1992-06-10
1994-11-29
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...
525178, 525184, 525432, C08L 7702
Patent
active
053691717
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.dbd.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.sub.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:
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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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Hopperdietzel Siegfried
Klein Herbert
Mulhaupt Rolf
Rosch Joachim
Weinberg Ekkehard
Rehau & AG & Co.
Seidleck James J.
Zemel I.
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