Polymer and triazine compound
US-2024052103-A1 · Feb 15, 2024 · US
Prepreg, fibre-reinforced composite material, and particle-containing resin composition
US2016289404A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016289404-A1 |
| Application number | US-201415037424-A |
| Country | US |
| Kind code | A1 |
| Filing date | Oct 28, 2014 |
| Priority date | Nov 19, 2013 |
| Publication date | Oct 6, 2016 |
| Grant date | — |
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- Title
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Abstract
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The prepreg comprises: a reinforcing fiber layer including reinforcing fibers and a resin composition with which the space between fibers of the reinforcing fibers is impregnated and which contains (A) a benzoxazine resin, (B) an epoxy resin, and (C) a curing agent having 2 or more phenolic hydroxy groups in a molecule; and a surface layer provided on a surface of the reinforcing fiber layer and containing (A) to (C) components, and (D) polyamide resin particles having an average particle size of 5 to 50 μm, wherein the polyamide resin particles include polyamide resin particles made of copolymers in which caprolactam and laurolactam are copolymerized at a molar ratio of 1:9 to 3:7 and at a molar ratio of 9:1 to 7:3, respectively.
First claim
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1 . A prepreg comprising: a reinforcing fiber layer including reinforcing fibers and a resin composition with which the space between fibers of the reinforcing fibers is impregnated and which contains (A) a benzoxazine resin, (B) an epoxy resin, and (C) a curing agent having 2 or more phenolic hydroxy groups in a molecule; and a surface layer provided on at least one surface of the reinforcing fiber layer and containing (A) a benzoxazine resin, (B) an epoxy resin, (C) a curing agent having 2 or more phenolic hydroxy groups in a molecule, and (D) polyamide resin particles having an average particle size of 5 to 50 μm, wherein the polyamide resin particles include a polyamide resin particle made of a copolymer in which caprolactam and laurolactam are copolymerized at a molar ratio of 1:9 to 3:7 and a polyamide resin particle made of a copolymer in which caprolactam and laurolactam are copolymerized at a molar ratio of 9:1 to 7:3. 2 . The prepreg according to claim 1 , wherein the surface layer contains 65 to 78 parts by mass of the (A) component, 22 to 35 parts by mass of the (B) component, 5 to 20 parts by mass of the (C) component, and 15 to 45 parts by mass of the (D) component when it is assumed that the total amount of the (A) component and the (B) component is 100 parts by mass. 3 . A fiber-reinforced composite material obtained by stacking the prepreg according to claim 1 plurally and performing heating under increased pressure. 4 . A resin composition containing particles comprising: (A) a benzoxazine resin; (B) an epoxy resin; (C) a curing agent having 2 or more phenolic hydroxy groups in a molecule; and (D) polyamide resin particles having an average particle size of 5 to 50 μm, wherein the polyamide resin particles include a polyamide resin particle made of a copolymer in which caprolactam and laurolactam are copolymerized at a molar ratio of 1:9 to 3:7 and a polyamide resin particle made of a copolymer in which caprolactam and laurolactam are copolymerized at a molar ratio of 9:1 to 7:3. 5 . A fiber-reinforced composite material obtained by stacking the prepreg according to claim 2 plurally and performing heating under increased pressure.
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Classifications
containing three or more polymers in a blend · CPC title
- C08L79/04Primary
Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors · CPC title
Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors · CPC title
- C08J5/24Primary
Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs · CPC title
Characterised by the use of epoxy resins; Derivatives of epoxy resins · CPC title
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- What does patent US2016289404A1 cover?
- The prepreg comprises: a reinforcing fiber layer including reinforcing fibers and a resin composition with which the space between fibers of the reinforcing fibers is impregnated and which contains (A) a benzoxazine resin, (B) an epoxy resin, and (C) a curing agent having 2 or more phenolic hydroxy groups in a molecule; and a surface layer provided on a surface of the reinforcing fiber layer an…
- Who is the assignee on this patent?
- Jx Nippon Oil & Energy Corp, Fuji Heavy Ind Ltd
- What technology area does this patent fall under?
- Primary CPC classification C08L79/04. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Oct 06 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).