Grooved resin molded part
AssigneePolyplastics Co., Ltd.
InventorAkihiro Mochizuki
Life of this patent
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Abstract
A grooved resin molded part which when joined to another molded part, can form a composite molded product having an enhanced strength. This part contains an inorganic filler and has multiple grooves formed by partially removing the resin, such that the filler is exposed in these grooves. The depth of the grooves may be at least one-half of the length of the grooves in the shorter direction. The filler may have a fibrous shape; and the longer direction of the filler may be different from that of the grooves. The part is obtained by subjecting a resin molded part containing the filler to laser irradiation or the like to form multiple grooves in which the filler is exposed.
Claims15
A composite molded article comprising a grooved resin molded article and another molded article,
- wherein the grooved resin molded article comprises:
- a fibrous inorganic filler;
- at least one groove;
- and
- a first protrusion on a first side of the at least one groove and a second protrusion on a second side of the at least one groove,
- wherein the fibrous inorganic filler has a mean fiber length longer than a width of the groove, such that the fibrous inorganic filler can contact both the first protrusion and the second protrusion across the at least one groove,
- wherein the other molded article is adjoined on a surface having the at least one groove of the grooved resin molded article;
- and
- wherein the other molded article is arranged to surround the inorganic filler in the inside of the at least one groove,
- wherein the grooved resin molded article comprises a plurality of grooves, and the distance between adjacent grooves is the same or more as the width of the at least one groove and twice the width or less of the at least one groove.
Dependencies are inferred from the claim text.