Polar thermoplastic additive for molding compounds and molding c

Details Polar thermoplastic additive for molding compounds and molding c Polar thermoplastic additive for molding compounds and molding c

1974-12-12

1976-05-11

Schofer, Joseph L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260 336UA, 260 40R, 260855, 526 72, 526 79, 526260, 526264, 526277, 526310, 526329, 526347, C08L 6706, B01F 700, B01F 1502

Patent

active

039564215

ABSTRACT:
The disclosure teaches the gelling and thickening of matrix forming resin systems by ion-dipole bonds. Suitable ions are introduced into the resin matrix as alkaline oxides or hydroxides. Thermoplastic polymers containing polar groups are used as additives for the thermosetting resins to offset shrink of the thermosetting resins during their crosslinking and curing in the molding operation. In the molded thermoset state of the resin materials, the polar groups provide sites for the improved bonding of paints, as for example, gel coats. The invention has particular advantages in polyester thermosetting resin systems and in the thermoplastic additives that are used therewith. Polar monomers copolymerized with styrene are the preferred thermoplastic additives.

REFERENCES:
patent: 2568331 (1951-09-01), Frilette
patent: 3227665 (1966-01-01), Fourcade
patent: 3503921 (1970-03-01), Souza, Jr. et al.
patent: 3574788 (1971-04-01), Baum
patent: 3729528 (1973-04-01), Werner et al.
patent: 3772241 (1973-11-01), Kroeker
patent: 3810863 (1974-05-01), Hatton et al.
patent: 3830772 (1974-08-01), Busch et al.
patent: 3844995 (1974-10-01), Kloker et al.
patent: 3852376 (1974-12-01), Bando et al.
patent: R25395 (1963-06-01), Mallison

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