US PATENT SUBCLASS 501 / 14
.~.~ Enamels, glazes, or fusion seals (e.g., raw, fritted, or calcined ingredients)

Current as of: June, 1999
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501 /   HD   COMPOSITIONS: CERAMIC

1  DF  CERAMIC COMPOSITIONS {15}
11  DF  .~ Glass compositions, compositions containing glass other than those wherein glass is a bonding agent, or glass batch forming compositions {11}
14.~.~ Enamels, glazes, or fusion seals (e.g., raw, fritted, or calcined ingredients) {4}
15  DF  .~.~.~> Fusion seals (frit plus material other than glass)
16  DF  .~.~.~> Plural diverse frits
17  DF  .~.~.~> Frit plus material other than glass (e.g., color, opacifier, mill additions, etc.) {3}
21  DF  .~.~.~> Chemically specified frit compositions {4}

DEFINITION

Classification: 501/14

Enamels, glazes, or fusion seals (e.g., raw, fritted, or calcined ingredients):

(under subclass 11) Compositions disclosed as vitreous enamels, or glazes, or similar compositions which are intended for use as seals between glass and/or metal components of various devices.

(1) Note. The compositions in this and indented subclasses have typically been cross-referenced below on the basis of their specific ingredient content, e.g., to subclasses 21+ for frit compositions, subclass 40 for nonoxide glasses, subclasses 41+ for nonsilica and nonsilicate containing oxide glasses, and subclasses 53+ for Si02 containing glasses.

(2) Note. Documents classified as originals in this and indented subclasses which disclose optical glass compositions are cross-referenced in subclasses 900+.

SEE OR SEARCH CLASS

106, Compositions: Coating or Plastic,

312, for opacifiers for enamels, per se.

427, Coating Processes, for processes of enameling with vitreous enamel compositions. 523, Synthetic Resins or Natural Rubbers, appropriate subclasses, particularly

170, for a composition containing a synthetic resin or Natural Rubbers and having utility as an enamel composition for glass or for a medium or binder in the preparation of glass enamel or to processes of preparing said composition.