Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Rod – strand – filament or fiber
Patent
1979-03-05
1980-11-18
Kendell, Lorraine T.
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Rod, strand, filament or fiber
428156, 428159, 428167, 428179, 428357, 428358, 428364, 428369, 428398, 428542, B32B 100, D02G 300
Patent
active
042346576
ABSTRACT:
Sticks of foamable thermoplastic material are provided with grooves in at least one surface. These grooves extend width-wise of the stick. In addition, the grooves are disposed in equi-spaced relation along one surface of the stick, or in spaced-apart series or groups on only one surface, or in series or groups on opposite surfaces and in spaced-apart relation. Upon foaming, the sticks form foamed elements of various shapes, each of which has at least one curvilinear portion such as, for example, a corkscrew shape, an annular shape or shapes with reverse bends.
REFERENCES:
patent: 1816043 (1931-07-01), Fales
patent: 2434533 (1948-01-01), Wurzburger
patent: 3066382 (1962-12-01), Zweigle et al.
patent: 3092873 (1963-06-01), Kay et al.
patent: 3188264 (1965-06-01), Holden
patent: 3251728 (1966-05-01), Humbert et al.
patent: 3393083 (1968-07-01), Yukichi Go
patent: 3481455 (1969-12-01), Graham et al.
patent: 4027064 (1977-05-01), Bussey, Jr.
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