FORMALDEHYDE-FREE PLYWOOD AND PREPARATION THEREOF
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Sep 18, 2014
app pub date -
Aug 30, 2013
filing date -
Mar 13, 2013
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
The present invention discloses a method for preparation of formaldehyde-free plywood from scrap plastic alloys. Different scrap plastics are used to prepare plastic alloy film, which is then used as an adhesive material for the preparation of new plywood without formaldehyde emission. The formaldehyde-free plywood according to the present invention is prepared by the following steps: different scrap plastics are crushed, cleaned separately, and then corresponding fillers and additives are added to the above crushed material or their mixtures which mixed according to a certain blending ratio; plastic alloy film of certain size and thickness is prepared after the film blowing and rolling processes; after being assembled with wood veneers to form a lay-up mat, the mat is hot pressed and then cold pressed. The present invention provides a method of preparing non-toxic and environmentally friendly formaldehyde-free plywood, solving the problem that the environment and human beings being poisoned by the free formaldehyde released from ordinary plywood and at the same time providing a way of recycling and reusing scrap plastics.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully