Plastic and nonmetallic article shaping or treating: processes – Carbonizing to form article – Agglomeration or accretion
Patent
1977-07-21
1978-06-06
Cockeram, H.S.
Plastic and nonmetallic article shaping or treating: processes
Carbonizing to form article
Agglomeration or accretion
20415919, 2041592, 260 75NA, 260 775A, 260 37N, 260 775TB, 260 22TN, 264154, 346 76L, H05B 700, C08G 1880, C08F 246, G01D 548
Patent
active
040936848
ABSTRACT:
In a process for data signal recording in which a recording medium is impinged upon by an intensity-modulated, focused laser beam to form a hole in at least one layer of the recording medium, the improvement wherein at least one layer of the recording medium comprises a polymer capable of undergoing residue-free depolymerization and the laser beam is of sufficient intensity to effect said depolymerization.
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Kirk-Othmer, Encyclopedia of Chemical Technology, vol. 10, Interscience, N.Y. (1953) pp. 143, 144, 809.
Saunders & Frisch, Polyurethanes, Part II, Interscience, N.Y. 1964, pp. 571-583.
Chem. Abstracts, vol. 64, 1966, cols. 18781-18782.
Hardy Edgar E.
Parts Leo P.
Cockeram H.S.
Monsanto Research Corporation
Stevens L. Bruce
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