Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1975-07-01
1977-08-02
Thurlow, Jeffery R.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156229, 156244, 156291, 264146, 264147, 264171, 264173, 264DIG47, B29D 724
Patent
active
040393640
ABSTRACT:
A high-strength laminate comprising generally weakly adhered biaxially oriented films, each formed of a blend which exhibits a distinct fibrous morphology with the fibres forming a distinct unidirectional grain when measured on a macro-scale but with the fibre-portions strongly deflected from this direction as seen on a micro-scale and with the unidirectional grain in at least two of the films criss-crossing each other. Producing this laminate by melt attenuating the blend(s) while extruding the latter to films, cross-laminating the layers before or after solidification while they are still in molecularly unoriented state -- except for the weak orientation produced by the melt-attenuation -- and finally strongly biaxially orienting the laminate by stretching in several steps, whereby the stretching is generally uniaxial during each step.
REFERENCES:
patent: 3233029 (1966-02-01), Rasmussen
patent: 3548048 (1970-12-01), Hughes et al.
patent: 3632711 (1972-01-01), Rasmussen
patent: 3778333 (1973-12-01), Rasmussen
patent: 3788922 (1974-01-01), Rasmussen
patent: 3853661 (1974-12-01), Sudo
Daniel William J.
Thurlow Jeffery R.
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