Laminate

Details Laminate Laminate

2005-07-29

2009-06-09

Nakarani, D. S (Department: 1794)

Stock material or miscellaneous articles

Composite

Of addition polymer from unsaturated monomers

C428S511000, C428S512000, C428S513000, C428S515000, C428S516000, C428S523000

Reexamination Certificate

active

07544422

ABSTRACT:
A laminate comprising, as at least one layer, a polyethylene resin layer that can be extrusion lamination molded, and satisfying the following requirements (A) to (D):(A) a density is 0.890-0.980 g/cm3;(B) the number of long chain branches having 6 or more carbon atoms is 0.01-3 per 1,000 carbon atoms;(C) a melt tension (mN) measured at 190° C. (MS190) and MFR (melt flow rate: g/10 min, 190° C.) under a load of 2.16 kg are satisfied with the following formula (1):in-line-formulae description="In-line Formulae" end="lead"?MS190>22×MFR−0.88  (1)in-line-formulae description="In-line Formulae" end="tail"?and a melt tension (mN) measured at 160° C. (MS160) and MFR (melt flow rate: g/10 min, 190° C.) under a load of 2.16 kg are satisfied with the following formula (2):in-line-formulae description="In-line Formulae" end="lead"?MS160>110−110×log(MFR)   (2)in-line-formulae description="In-line Formulae" end="tail"?(D) an endothermic curve obtained in temperature-rise measurement by a differential scanning calorimeter shows one peak.

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J.P. Hogan et al., “Melt Elasticity in Linear PE Containing Long Branches” (1967), SPE Journal, vol. 23, pp. 87-90.

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