Patent classifications
D03D15/267
GLASS CLOTH, PREPREG, AND PRINTED WIRING BOARD
Provided is a glass cloth obtained by weaving a glass thread, which is made from a plurality of glass filaments, as a warp and weft. The average filament diameter of the glass filaments is 3.0-4.5 μm. The respective weaving densities of the warp and the weft constituting the glass cloth are, independently, 70-130 threads/25 mm. The standard deviation of weft width of the glass cloth is not more than 30 μm. The weft covering ratio R, which is represented by the expression R=Y/(25400/D) (where R is the weft covering ratio, Y is the average weft width, and D is the well weaving density) satisfies the relational expression 0.50≤R≤0.83.
GLASS CLOTH, PREPREG, AND PRINTED WIRING BOARD
Provided is a glass cloth obtained by weaving a glass thread, which is made from a plurality of glass filaments, as a warp and weft. The average filament diameter of the glass filaments is 3.0-4.5 μm. The respective weaving densities of the warp and the weft constituting the glass cloth are, independently, 70-130 threads/25 mm. The standard deviation of weft width of the glass cloth is not more than 30 μm. The weft covering ratio R, which is represented by the expression R=Y/(25400/D) (where R is the weft covering ratio, Y is the average weft width, and D is the well weaving density) satisfies the relational expression 0.50≤R≤0.83.
Method of glass fabric production including resin adhesion for printed circuit board formation
Embodiments generally relate to devices and methods for production of fibers and threads for use in electronic device manufacturing. Described here, fibers can be produced and manipulated using a dual-surfaced sizing material. The dual-surfaced sizing material has a surface which binds a fiber and a surface which binds a resin. Thus, the dual-surfaced sizing material can be left attached to the fibers without adversely affecting the resin binding in later production steps.
FLEXIBLE SECOND GAS BARRIER WITH IMPROVED FATIGUE STRENGTH AND METHOD FOR MANUFACTURING THE SAME
A flexible second gas barrier for a liquefied gas storage tank which includes a stiffener fabric weaved with two or more kinds of fiber yarn selected from a group consisting of a glass fiber, a carbon fiber, an aramid fiber, and a synthetic fiber. The stiffener fabric is weaved so that a hybrid fiber yarn is made by 2-ply yarning two or more kinds of a single yarn or a twisted yarn of fiber yarn selected from a group consisting of a glass fiber, a carbon fiber, an aramid fiber, or a synthetic fiber, is included in the weft and/or warf so that repeated fatigue resistance, even under cryogenic conditions, is achieved, which ultimately has the effect of solving the problems associated with repeated load increase imposed on the second gas barrier as the thickness of LNGC Foam increases.
THERMAL MANAGEMENT OF PRINTED CIRCUIT BOARD COMPONENTS
A first thermal management approach involves an air flow through cooling mechanism with multiple airflow channels for dissipating heat generated in a PCA. The air flow direction through at least one of the channels is different from the air flow direction through at least another of the channels. Alternatively or additionally, the airflow inlet of at least one channel is off-axis with respect to the airflow outlet. A second thermal management approach involves the fabrication of a PCB with enhanced durability by mitigating via cracking or PTH fatigue. At least one PCB layer is composed of a base material formed from a 3D woven fiberglass fabric, and conductive material deposited onto the base material surface. A conductive PTH extends through the base material of multiple PCB layers, where the CTE of the base material along the z-axis direction substantially matches the CTE of the conductive material along the x-axis direction.
Fireproof fabric and protective suit, in particular for motor sports, made of said fabric
Fireproof fabric comprising a set of warp threads (C1, . . . C6) and a set of weft threads, wherein said warp threads (C1, . . . C6) are arranged on a plurality of warp levels (A, B, C); all said warp levels are bound together by at least one weft thread (T5) acting as a binding thread and arranged so as to prevent relative slipping of said levels, and at least one of the set of weft threads and the set of warp threads is formed by elasticized threads, comprising a core of elastically deformable material lined with a fireproof material.
REFORMABLE RESIN FIBERS
The present invention contemplates a method for forming a reformable epoxy resin material into a fiber format and: (i) weaving the reformable epoxy resin material (10) with a reinforcing fiber (12) to form a woven material; (ii) stitching a secondary material (14) with reformable epoxy resin material; and optionally (iii) forming a web or mesh with the reformable epoxy resin material.
TURF REINFORCEMENT MATS
Disclosed are exemplary embodiments of turf reinforcement mats that include spun yarns and/or multifilament yarns in either or both of the warp and weft directions.
Re-weaving machine and re-woven tire cord fabric
The invention relates to a re-weaving machine (1) and re-woven tire cord fabric which enables to weave the defected tire cord fabrics (B) to be woven again without being damaged after finishing process, re-woven tire cord fabric. The objective of the present invention is to provide a reweaving machine (1) which allows weaving the tire cord fabrics (B) again without getting damaged even in tire cord fabrics (B) with high linear densities and high weft densities, and which has blades (10) that can be adjusted according to the different cord fabric features.
IMPROVED LAMINATE
The use of a protection thread for the protection of a heat curable resin impregnated fibrous web. The web has weft and warp fibres, wherein the thread has a coefficient of thermal expansion within 10% of that of the heat curable resin impregnated fibres of the fibrous web, and wherein the coefficient of thermal expansion is measured using DIN 53752.