Ultraviolet light curing compositions for composite repair
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C08F-002/48
B05D-003/06
B05D-003/04
C08J-003/28
C08F-220/06
C08F-220/14
C08F-220/16
C08F-222/10
출원번호
US-0930826
(2011-01-18)
등록번호
US-9248468
(2016-02-02)
발명자
/ 주소
Bulluck, John W.
출원인 / 주소
Texas Research International, Inc.
대리인 / 주소
Egan. Peterman, & Enders LLP
인용정보
피인용 횟수 :
2인용 특허 :
21
초록▼
Methods and compositions concerning an ultraviolet light curable formulation useful for repairing composite materials including the repair of a hole in the exterior of an airplane. The formulation may contain an acrylic oligomer, an acrylic monomer, an organic peroxide, a dialkylaniline promoter, a
Methods and compositions concerning an ultraviolet light curable formulation useful for repairing composite materials including the repair of a hole in the exterior of an airplane. The formulation may contain an acrylic oligomer, an acrylic monomer, an organic peroxide, a dialkylaniline promoter, a photoinitiator. The formulation can include a filler such as carbon fabric or Kevlar fabric.
대표청구항▼
1. A method which comprises: combining an acrylic oligomer, an acrylic monomer, an organic peroxide, a dialkylaniline promoter, and a photoinitiator to provide an ultraviolet light (UV) curable formulation; applying the ultraviolet light (UV) curable formulation to a filler layer that is opaque to U
1. A method which comprises: combining an acrylic oligomer, an acrylic monomer, an organic peroxide, a dialkylaniline promoter, and a photoinitiator to provide an ultraviolet light (UV) curable formulation; applying the ultraviolet light (UV) curable formulation to a filler layer that is opaque to UV light to thereby form an ultraviolet light curable product having ultraviolet light curable formulation beneath the opaque filler layer; and irradiating the ultraviolet light curable product with UV light from above the opaque filler layer to cause curing of the formulation beneath the opaque filler layer to fully cure the UV curable product. 2. The method of claim 1, wherein the organic peroxide is benzoyl peroxide and the dialkylaniline promoter is dimethylaniline. 3. The method of claim 1, wherein the amount of the organic peroxide is from 0.3 to 0.5 percent by weight of the total weight of the acrylic oligomer, acrylic monomer, organic peroxide, dialkylaniline promoter, and photoinitiator. 4. The method of claim 1, wherein the amount of the dialkylaniline promoter is from 0.01 to 0.1 percent by weight of the total weight of the acrylic oligomer, acrylic monomer, organic peroxide, dialkylaniline promoter, and photoinitiator. 5. The method of claim 1, further comprising applying a vacuum to the ultraviolet light curable product to remove oxygen while irradiating the ultraviolet light curable product with UV light to fully cure the UV curable product in the absence of oxygen. 6. The method of claim 1, wherein the amount of organic peroxide is from 0.01 to 1 percent by weight of the total weight of the acrylic oligomer, acrylic monomer, organic peroxide, dialkylaniline promoter, and photoinitiator; and wherein the amount of dialkylaniline is from 0.01 to 0.25 percent by weight of the total weight of the acrylic oligomer, acrylic monomer, organic peroxide, dialkylaniline promoter, and photoinitiator. 7. The method of claim 1, further comprising storing the ultraviolet light curable formulation at ambient temperature before the steps of applying the ultraviolet light curable formulation to an opaque filler; and irradiating the ultraviolet light curable product with UV light to cause curing of the ultraviolet light curable formulation. 8. The method of claim 1, where the opaque filler comprises Kevlar fabric. 9. The method of claim 1, where the opaque filler comprises carbon fabric. 10. The method of claim 1, further comprising forming the ultraviolet light curable product on a metal plate prior to the step of irradiating the ultraviolet light curable product with UV light from above the opaque filler layer to cause curing of the formulation above the metal plate and beneath the opaque filler layer to fully cure the UV curable product. 11. The method of claim 1, further comprising forming the ultraviolet light curable product on a structure comprising aluminum prior to the step of irradiating the ultraviolet light curable product with UV light from above the opaque filler layer to cause curing of the formulation above the structure and beneath the opaque filler layer to fully cure the UV curable product. 12. The method of claim 1, further comprising forming the ultraviolet light curable product on an aircraft structure prior to the step of irradiating the ultraviolet light curable product with UV light from above the opaque filler layer to cause curing of the formulation above the aircraft structure and beneath the opaque filler layer to fully cure the UV curable product. 13. The method of claim 1, further comprising forming the ultraviolet light curable product on aluminum or steel prior to the step of irradiating the ultraviolet light curable product with UV light from above the opaque filler layer to cause curing of the formulation above the aluminum or steel and beneath the opaque filler layer to fully cure the UV curable product. 14. A method of repairing a hole in the exterior of an aircraft, comprising: applying alternating layers of (1) an ultraviolet light curable formulation and (2) a filler fabric that is opaque to UV light to fill the hole and to form an ultraviolet light curable product having ultraviolet light curable formulation between opaque filler layers;creating a vacuum across at least one side of the ultraviolet light curable product;irradiating the ultraviolet light curable product with ultraviolet light while vacuum is maintained across the at least one side of the ultraviolet light curable product to cause curing of the formulation between the opaque filler layers to produce a fully cured product; andremoving the vacuum,wherein the ultraviolet curable formulation comprises an acrylic oligomer, an acrylic monomer, an organic peroxide, a dialkylaniline promoter, and a photoinitiator. 15. The method of claim 14, wherein the organic peroxide is benzoyl peroxide and the dialkylaniline promoter is dimethylaniline. 16. The method of claim 14, wherein the amount of organic peroxide is from 0.3 to 0.5 percent by weight of the total weight of the acrylic oligomer, acrylic monomer, organic peroxide, dialkylaniline promoter, and photoinitiator, and wherein the amount of dialkylaniline is from 0.01 to 0.1 percent by weight of the total weight of the acrylic oligomer, acrylic monomer, organic peroxide, dialkylaniline promoter, and photoinitiator. 17. The method of claim 14, where the opaque filler comprises Kevlar fabric. 18. The method of claim 14, where the opaque filler comprises carbon fabric. 19. The method of claim 14, wherein the amount of organic peroxide is from 0.01 to 1 percent by weight of the total weight of the acrylic oligomer, acrylic monomer, organic peroxide, dialkylaniline promoter, and photoinitiator; and wherein the amount of dialkylaniline is from 0.01 to 0.25 percent by weight of the total weight of the acrylic oligomer, acrylic monomer, organic peroxide, dialkylaniline promoter, and photoinitiator. 20. The method of claim 14, further comprising storing the ultraviolet light curable formulation at ambient temperature before the steps of applying, creating and irradiating. 21. The method of claim 14, where the step of applying further comprises applying the alternating layers of (1) an ultraviolet light curable formulation and (2) a filler fabric that is opaque to UV light on a structure of the aircraft to fill the hole and to form an ultraviolet light curable product having ultraviolet light curable formulation above the aircraft structure and between the opaque filler layers prior to the step of creating; and where the step of irradiating further comprises irradiating the ultraviolet light curable product with ultraviolet light from above the opaque filler layers while vacuum is maintained across the at least one side of the ultraviolet light curable product to cause curing of the formulation above the aircraft structure and between the opaque filler layers to produce a fully cured product. 22. The method of claim 14, where the step of irradiating further comprises irradiating the ultraviolet light curable product with ultraviolet light from above the opaque filler layers while vacuum is maintained across the at least one side of the ultraviolet light curable product to cause curing of the formulation between the opaque filler layers to produce a fully cured product.
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이 특허에 인용된 특허 (21)
Leppard David G. (Marly CHX) Khler Manfred (Freiburg DEX) Misev Ljubomir (Allschwil CHX), Alkylbisacylphosphine oxides.
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Hesse, Ingo, Method for treating a fiber-plastic composite of a rotor blade, semifinished product in the form of a composite structure and UV lamp for curing a UV-curable matrix material.
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