PATENT CLAIM ANALYSIS

Application Number: 16397702
Application Type: Utility
Filing Date: 2019-04
Publication Date: 2019-08
Patent Classification: ["423", "580100"]

Abstract:
The present invention relates to a process for the reduction of pitch in an aqueous medium generated in a papermaking or pulping process, comprising the following steps: a) providing an aqueous medium comprising pitch generated in a papermaking or pulping process; b) providing a ground calcium carbonate and/or a precipitated calcium carbonate; c) providing a hydrophobising agent selected from an aliphatic carboxylic acid having between 5 and 24 carbon atoms; d) contacting the ground calcium carbonate and/or the precipitated calcium carbonate of step b) with the hydrophobising agent of step c) for obtaining a hydrophobised ground calcium carbonate and/or a hydrophobised precipitated calcium carbonate; and e) contacting the aqueous medium provided in step a) with the hydrophobised ground calcium carbonate and/or the hydrophobised precipitated calcium carbonate obtained in step d), to the use of a hydrophobised ground calcium carbonate and/or a hydrophobised ground calcium carbonate for reducing the amount of pitch in an aqueous medium as well as to a hydrophobised ground calcium carbonate and/or a hydrophobised ground calcium carbonate and a composite of hydrophobised ground calcium carbonate and/or hydrophobised ground calcium carbonate and pitch.

Claim (Index 9):
The hydrophobised ground calcium carbonate and/or the hydrophobised precipitated calcium carbonate according to  claim 1 , wherein the ground calcium carbonate particles and/or the precipitated calcium carbonate particles have a specific surface area of from 0.5 m 2 /g to 25 m 2 /g, measured using nitrogen and the BET method.

Metadata:
- Claim Count in Document: 29.0
- Percentile: 100.0
- Lexical Diversity: 3.10769
- Patent Class: 423.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['14127725', '15129524', '12449911', '13068168', '14284585']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8043443702161727
- 35 USC 102 Novelty (BERT): 0.6417554900275331
- Combined Prediction Score: 0.7880854821973088
- Mean Citation Score: 386.934274
- Max Citation Score: 639.9074
- Similarity Product: 559.3309100735427

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test