Unlock instant, AI-driven research and patent intelligence for your innovation.

Sized glass filaments intended for reinforcing polymeric materials, more particularly by moulding

A technology of glass filaments and composite materials, applied in the direction of coating, etc., can solve the problems of high number of knots and insufficient integrity

Inactive Publication Date: 2009-06-17
OCV INTELLECTUAL CAPITAL LLC
View PDF3 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0021] Although the performance level of these filaments is generally satisfactory, the number of loops per unit length of the filament is still high and the integrity is insufficient

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Sized glass filaments intended for reinforcing polymeric materials, more particularly by moulding

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0069] A finishing composition is prepared in the form of an aqueous solution, expressed as a percentage by weight of solid matter, the composition comprising:

[0070] ■Adhesive film former:

[0071] - Polyvinyl acetate; molecular weight: 50 000 (1) 80

[0072] - Polyvinylpyrrolidone; molecular weight: 1200-2000 (2) 3.75

[0073] ■Coupling agent:

[0074] -γ-Methacryloxypropyltriethoxysilane (3) 1

[0075] -Aminosilane (4) 4

[0076] ■Plasticizer:

[0077] - A mixture of diethylene glycol dibenzoate and dipropylene glycol dibenzoate (50 / 50 by weight) (5) 7.45

[0078] ■Lubricant:

[0079] -Polyethyleneimide with free amide functionality (6) 3.8

[0080] ■ Water: sufficient amount to obtain 100 ml of finishing composition.

[0081] Prepare the finishing composition as follows:

[0082] Silane (3)(4) An acid is added to the aqueous solution to hydrolyze t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
lengthaaaaaaaaaa
Login to View More

Abstract

The invention relates to glass filaments which are intended for reinforcing polymeric materials and which are coated with a sizing composition comprising, as adhesive film-forming agents, a mixture of at least one polyvinyl acetate and at least one polyvinylpyrrolidone, said at least one polyvinyl acetate representing 70% to 90% by weight of the solids of the size. The resulting glass filaments are used as reinforcements in the production of mouldings having a thermosetting matrix that are obtained by simultaneous spraying of said filaments and resin, in particular by LFI (Long Fibre Injection) moulding.

Description

technical field [0001] The invention relates to glass filaments coated with an ensimage composition for the reinforcement of polymeric organic materials, the finishing composition for coating said glass filaments and the composites thus obtained, in particular by moulding. . Background technique [0002] Glass filaments for reinforcement are usually produced on an industrial scale from a thin stream of molten glass exiting a plurality of holes in a spinneret. These thin streams are mechanically drawn into the form of continuous filaments, which are then gathered into base filaments, which are then collected, for example by winding onto a rotating support. The filaments are coated with a finishing composition by passing them over a suitable device, such as a coating roll, before they are brought together. [0003] Finishing compositions have proven to be necessary in several ways. [0004] The finishing composition protects the glass filaments against the abrasion that occ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C03C25/28C09D131/04C08L31/04C08L5/08C08K7/14B29C70/00C03C25/26
CPCC09D131/04C03C25/28C03C25/26B29C70/06B29C70/305C08L39/06C08L2666/04C03C25/10
Inventor D·隆彼诺F·勒德雷尔C·梅特拉
Owner OCV INTELLECTUAL CAPITAL LLC