Paper with water repellent and partially heat sealing properties
US10876256B2 · kind B2 · utility
2Cited by
1References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 27, 2017 |
| Grant date | Dec 29, 2020 |
| Priority date | — |
| Expiry date | Aug 31, 2037 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H27/30
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a process for making a heat sealable substrate starting from a water repellent substrate. In particular, the present invention relates to a process for making water repellent paper cups. In particular, the present invention discloses a process for applying one or more heat sealable strips on a water repellent substrate, for example paper or paper board. Further, the present invention also relates to a heat sealable substrate obtained by said process for making paper cups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.