Two-stage heat resistant binders for nonwovens

Details Two-stage heat resistant binders for nonwovens Two-stage heat resistant binders for nonwovens

1988-09-09

1990-07-17

Cannon, James C.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Noninterengaged fiber-containing paper-free web or sheet...

4273899, 427392, 428291, 428489, 428507, 428510, 428514, B05D 300, B32B 1104, B32B 1110, B32B 2730, E04D 502

Patent

active

049420860

ABSTRACT:
Heat resistance binders for flexible polyester webs may be prepared using an emulsion polymer,the polymer being prepared by a two-stage polymerization procedure wherein a first stage is prepared based on a relatively low Tg ethylene vinyl acetate polymer and a second stage higher Tg polymer thereby combining the advantageous flexibility and film forming properties of the ethylene vinyl acetate copolymer with the stiffness and heat resistance of the higher Tg copolymer.

REFERENCES:
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patent: 3671610 (1972-06-01), Amagi et al.
patent: 3732184 (1973-05-01), Lindemann et al.
patent: 3833404 (1974-09-01), Sperling et al.
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patent: 4539254 (1985-09-01), O'Connor et al.
patent: 4599258 (1986-07-01), Hageman
patent: 4616057 (1986-10-01), Lindemann et al.
patent: 4859508 (1989-08-01), Pangrazi et al.
"Method of Evaluating Heat Resistance of Polymers Through Thermomechanical Analysis", M. E. Yannich and R. Pangrazi; 1986 TAPPI Proceedings; 1986 Nonwovens Conference.

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