US PATENT SUBCLASS 427 / 487
.~ Polymerization of coating utilizing direct application of electrical, magnetic, wave, or particulate energy (i.e., including cross-linking, curing, and hardening of organics)

Current as of: June, 1999
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427 /   HD   COATING PROCESSES

457  DF  DIRECT APPLICATION OF ELECTRICAL, MAGNETIC, WAVE, OR PARTICULATE ENERGY {15}
487.~ Polymerization of coating utilizing direct application of electrical, magnetic, wave, or particulate energy (i.e., including cross-linking, curing, and hardening of organics) {8}
488  DF  .~.~> Plasma initiated polymerization {3}
492  DF  .~.~> Multiple applications of identical radiation energy source to polymerize (e.g., pulse, flash, lamp, etc.)
493  DF  .~.~> Application of plural diverse energy sources to polymerize (e.g., electromagnetic wave plus resistance heat, ultraviolet wave plus infrared wave, etc.)
494  DF  .~.~> Gloss control (e.g., light scattering, etc.)
495  DF  .~.~> Polymerization involving the control of oxygen containing gas as an inhibitor (e.g., air, etc.)
496  DF  .~.~> High energy electromagnetic radiation or high energy particles utilized (e.g., gamma rays, X-rays, atomic particles, i.e., alpha rays, beta rays, electrons, etc.) {9}
508  DF  .~.~> Low energy electromagnetic radiation utilized (e.g., UV, visible, IR, microwave, radio wave, actinic, laser, etc.) {10}
522  DF  .~.~> Resistance or induction heat-initiated polymerization

DEFINITION

Classification: 427/487

Polymerization of coating utilizing direct application of electrical, magnetic, wave, or particulate energy (i.e., including cross-linking, curing, and hardening of organics):

(under subclass 457) Processes wherein polymerization of the applied coating material (i.e., not the substrate) occurs as a result of direct application of electrical, magnetic, particulate, electromagnetic, wave energy or heat produced therefrom and at any stage in the coating process.

(1) Note. The applied energy, most often in the form of heat or light, must be used in the polymerization step.

(2) Note. For the purpose of classification here and in indented subclasses, the following terms will be understood to denote some form of polymerization: a. cross-linking; b. curing; c. hardening of organic; d. addition polymerization; e. condensation polymerization; f. grafting.

(3) Note. A claim drawn to a process of irradiating an applied coating composition with or without a reaction promoter being present, where some form of polymerization reaction takes place is proper for this and indented subclasses.

(4) Note. Processes involving coating utilizing neutral and charged particles is proper for this and indented subclasses.