Drafting material

Details Drafting material Drafting material

1987-12-15

1989-04-25

Robinson, Ellis P.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

428195, 428480, 428482, 428483, 428520, 428522, 428524, 428910, 430157, 430158, B32B 2708

Patent

active

048247251

ABSTRACT:
Disclosed is a drafting material comprising a transparent base material with a hydrophilic coating which readily accepts ink, ensures rapid drying of the ink and can be marked in a wipe-resistant manner. The hydrophilic coating of the drafting material includes sulfonate group-containing copolyesters which are preferably present in an amount of 30 to 70 percent by weight. The drafting material can be marked with felt-tip pens containing aqueous inks.

REFERENCES:
patent: 3396046 (1968-08-01), Landau
patent: 3563942 (1971-02-01), Heiberger
patent: 3720539 (1973-03-01), Seibel et al.
patent: 3734874 (1973-05-01), Kibler et al.
patent: 4139506 (1979-02-01), Thoese et al.
patent: 4252885 (1981-02-01), McGrail et al.
patent: 4500598 (1985-02-01), Thoese
patent: 4542059 (1985-09-01), Toganoh et al.
patent: 4543316 (1985-09-01), Thoese
patent: 4575465 (1986-03-01), Viola

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