US PATENT SUBCLASS 156 / 308.2
.~.~ By tackifying substance of self-sustaining lamina to be bonded; e.g., autogenous bonding, etc.

Current as of: June, 1999
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156 /   HD   ADHESIVE BONDING AND MISCELLANEOUS CHEMICAL MANUFACTURE

1  DF  METHODS {7}
60  DF  .~ Surface bonding and/or assembly therefor {93}
308.2.~.~ By tackifying substance of self-sustaining lamina to be bonded; e.g., autogenous bonding, etc. {4}
308.4  DF  .~.~.~> Only part of contacting laminae surfaces bonded; e.g., seam, seal, etc.
308.6  DF  .~.~.~> With treating agent application to a surface {2}
309.6  DF  .~.~.~> Involving defined plastic flow or melting of entire lamina
309.9  DF  .~.~.~> With heating of lamina prior to assembly

DEFINITION

Classification: 156/308.2

By tackifying substance of self-sustaining lamina to be bonded; e.g., autogenous bonding, etc..:

(under subclass 60) Subject matter wherein bonding is achieved without use of an extraneous adhesive material by making a portion of a lamina which is to be bonded, per se, tacky.

(1) Note. Tackiness is usually achieved by heat or by a swelling or solvent action.

(2) Note. Subject matter for this subclass includes autogenous bonding of a fibrous web to another lamina.

SEE OR SEARCH THIS CLASS, SUBCLASS:

166+, especially, subclass 181, for autogenous bonding of filaments of indefinite length or in the form of running lengths, to each other, to form a web.

182, for a bonding process in which one laminate (e.g., a coated substrate, etc..) is bonded to another laminate by tackifying a single lamina of one or both of the intermediate laminates.

324.4, for a process in which a single lamina, e.g., a coating, etc.., of an intermediate laminate, e.g., a coated substrate, etc.., is tackified for bonding to another lamina. SEE OR SEARCH CLASS

162, Paper Making and Fiber Liberation, appropriate subclasses for a process of manufacturing a fibrous web by a process which include water laying. The web may be held together by adhesive forces stemming from an extraneously applied material or from a component or property inherent in the fiber.

264, Plastic and Nonmetallic Article Shaping or Treating: Processes,

109+, for a process of manufacturing an article, e.g., a web, for staple-length fibers by a process which excludes a water-laying step, but which may include autogenous bonding. See subclasses 123+.