Fiber-reinforced composite articles and methods of making them
AssigneeJohns Manville
InventorsMingfu Zhang, Jawed Asrar, Klaus Friedrich Gleich, Michael John Block, Asheber Yohannes
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Abstract
Methods of making a prepreg are described. The methods include the steps of forming a fiber-containing substrate, and contacting the fiber-containing substrate with a resin mixture. The resin mixture may include particles of monomers or oligomers mixed in a liquid medium, and the particles may be coated on the fiber-containing substrate to form a coated substrate. The liquid medium may be removed from the coated substrate to form the prepreg. The prepregs may be used to make fiber-reinforced articles.
Claims50
A method of making a pre-polymerized prepreg, the method comprising:
- forming a fiber-containing substrate;
- contacting the fiber-containing substrate with a resin mixture, wherein the resin mixture includes particles of monomers or oligomers mixed in a liquid medium, and wherein the particles of the monomers or oligomers are coated on the fiber-containing substrate to form a coated substrate;
- and
- removing the liquid medium from the coated substrate to form the pre-polymerized prepreg.
A method of making a fiber-reinforced composite article, the method comprising:
- contacting a fiber-containing substrate with a resin mixture of resin particles dispersed in a liquid medium, wherein the resin particles comprise monomers, oligomers, or polymers;
- drying and melting the resin particles on the fiber-containing substrate to make a prepreg comprising resin and the fiber-containing substrate;
- and
- forming the prepreg into the fiber-reinforced composite article.
A method of forming a resin mixture, the method comprising incorporating cyclic alkylene terephthalate into an aqueous medium, wherein the incorporated cyclic alkylene terephthalate comprises solid particles in the aqueous medium.
A prepreg comprising:
- a fiber-containing substrate;
- and
- resin particles comprising monomers or oligomers of a cyclic alkylene terephthalate, wherein the resin particles are coated in the fiber-containing substrate from a resin mixture containing the resin particles dispersed in a liquid medium.
Dependencies are inferred from the claim text.