Household thin paper
US7850821B2 · kind B2 · utility
0Cited by
4References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 24, 2005 |
| Grant date | Dec 14, 2010 |
| Priority date | — |
| Expiry date | Aug 24, 2025 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H27/002
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A household thin paper, that offers flexibility and further difficulty in tearing, comprising a polyester-based compound represented by General Formula (1):wherein R1 is HO— or HO(R2O)a-, R2 is an alkylene group having 2 or 3 carbon atoms, only a single type of R2O or two types of R2O can be attached randomly or as a block, “a” is 1 to 200, all “a”s may be same or different in an identical molecule, b is 2 to 100, and R3 is a hydrogen atom or the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.