| US 7,537,666 B2 | ||
| Method for arming composit-fabrication of open-air located objects | ||
| Vilmos Kajtár, Budapest (Hungary); József Maros, Budakeszi (Hungary); Árpád Szilágyi, Budapest (Hungary); Árpád Szilágyi, legal representative; Csaba Kétszeri, Siófok (Hungary); Imre Vehofsits, Siófok (Hungary); Pëter Gara, Törökbälint (Hungary); and György Kollár, Budapest (Hungary) | ||
| Assigned to GRP Plasticorr, Budapest (Hungary); MOL Foldgazszallito, Siofok (Hungary); and Gksoft BT., Budapest (Hungary) | ||
| Appl. No. 11/570,271 PCT Filed Jun. 10, 2005, PCT No. PCT/HU2005/000065 § 371(c)(1), (2), (4) Date Apr. 05, 2007, PCT Pub. No. WO2005/121224, PCT Pub. Date Dec. 22, 2005. |
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| Claims priority of application No. 0401172 (HU), filed on Jun. 11, 2000. | ||
| Prior Publication US 2007/0292621 A1, Dec. 20, 2007 | ||
| Int. Cl. B29C 73/00 (2006.01); B32B 43/00 (2006.01); B29C 70/86 (2006.01); B29C 53/58 (2006.01); B29C 53/80 (2006.01); B32B 25/02 (2006.01); B32B 25/10 (2006.01) | ||
| U.S. Cl. 156—94 [156/172; 156/173; 156/175; 428/295.1; 428/295.4] | 14 Claims |
| 1. Method for arming composite-fabrication to repair, reinforce or enhance stability of open-air located objects with unsaturated
polyester/vinyl-ester resin based matrix-materials containing unidirectional oriented banded reinforcing materials in the
form of freely deformable multi-layer composite bands, comprising:
a) transferring an activator needed to harden a prepreg by diffusion from the polyester/vinyl-ester resin based adhesive material,
b) applying the activator between consecutive layers of a coiled band of the prepreg,
c) enhancing the matrix material's networking by decomposing peroxides mixed into the matrix at low temperature and
d) solidifying the band in its entire thickness, wherein said adhesive comprises 30-50 m/m % of an unsaturated polyester resin
and/or vinyl-ester resin; 1-10 m/m % of a (meth)acryl-acid-ester monomer; 1-5 m/m % of a thixatropic additive; 30-50 m/m %
of aluminum-hydroxide and/or CaCO3 powder and/or talcum or any kind of mixture of these elements; 1-5 m/m % diacil-peroxide, keton-peroxide, kumol-hydro-peroxide
or any kind of mixture of these elements; 0.1-1 m/m % of N,N-di-methyl-aniline and/or 0.1-1 m/m % of N,N-diethyl-aniline;
1-5 m/m % of a 1% solution of cobalt-naftenate; 1-5 m/m % solution of 1-5 m/m % vanadium-naphthenate; 0.5-1 m/m % of acetyl-acetone.
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