Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1978-10-04
1980-08-26
Person, Sandra M.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
260 37N, C08K 714, C08K 718
Patent
active
042194598
ABSTRACT:
Hot melt adhesive compositions comprising a block copolymer, particulate mineral reinforcing agent, glass fiber and hollow inorganic silicate microspheres. The block copolymer is selected from the group consisting of copolyesters, copolyamides, copoly(esteramides) and copoly(ether-esters) melting at a temperature above about 150.degree. C. and having from about 30 to about 70 weight percent of hard segments and from about 70 to about 30 weight percent of soft segments. The weight ratio of block copolymer to particulate inorganic reinforcing agent, glass fiber and silicate microspheres is in the range of about 3:7 to about 3:2, the weight ratio of block copolymer to glass fiber is at least about 3:4, the weight ratio of particulate mineral to glass fiber is in the range of about 1:3 to about 9:1 and the volume percentage of hollow inorganic silicate microspheres is less than about 12. The compositions are particularly useful for filling voids and cavities in substrates.
REFERENCES:
patent: 3650999 (1972-03-01), Martins et al.
patent: 3859251 (1975-01-01), Kuhfuss et al.
patent: 4073973 (1978-02-01), Martins et al.
patent: 4097445 (1978-06-01), Martins et al.
Philadelphia Quartz Co. (PQ Corp.), Product Bulletin QC-2B (3-1-77), "Q-Cel Microspheres . . . ".
Donermeyer Donald D.
Martins Joseph G.
Blance R. Bruce
Farrington William J.
Grattan Edward P.
Monsanto Company
Person Sandra M.
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