Total heat exchanging element paper
US-9513069-B2 · Dec 6, 2016 · US
Clupak paper
US9945077B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9945077-B2 |
| Application number | US-201414901997-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 11, 2014 |
| Priority date | Jul 18, 2013 |
| Publication date | Apr 17, 2018 |
| Grant date | Apr 17, 2018 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
Clupak paper is manufactured using a gap-former paper-making machine equipped with a Clupak system, in such a way that its longitudinal tensile energy absorption index and lateral tensile energy absorption index as specified in JIS P8113 become 2.5 J/g or more and 1.0 J/g or more, respectively. The paper has excellent strength characteristics in both the longitudinal and lateral directions, especially in the longitudinal direction so that when the Clupak paper can be processed into a sack, the sack rarely breaks.
First claim
Opening claim text (preview).
What is claimed is: 1. Clupak paper whose longitudinal tensile index and lateral tensile index as specified in JIS P8113: 2006 are 60 N·m/g or more and 28 N·m/g or more, respectively, and longitudinal tensile energy absorption index and lateral tensile energy absorption index as specified in JIS P8113: 2006 are 2.5 J/g or more and 1.0 J/g or more, respectively. 2. Clupak paper according to claim 1 , whose longitudinal tensile stiffness index and lateral tensile stiffness index as specified in ISO/DIS 1924-3 are 4.0 kN·m/g or more and 2.8 kN·m/g or more, respectively. 3. Clupak paper according to claim 2 , whose longitudinal tear index and lateral tear index as specified in JIS P-8116: 2000 are 12 mN·m2/g or more and 20 mN·m2/g or more, respectively. 4. Clupak paper according to claim 2 , whose freeness after disintegration as measured according to a measurement method specified in JIS P8121: 1995 based on pulp that has been disintegrated as specified in JIS P8220: 1998, is 400 to 700 ml. 5. Clupak paper according to claim 1 , whose longitudinal tear index and lateral tear index as specified in JIS P-8116: 2000 are 12 mN·m2/g or more and 20 mN·m2/g or more, respectively. 6. Clupak paper according to claim 5 , whose freeness after disintegration as measured according to a measurement method specified in JIS P8121: 1995 based on pulp that has been disintegrated as specified in JIS P8220: 1998, is 400 to 700 ml. 7. Clupak paper according to claim 1 , whose freeness after disintegration as measured according to a measurement method specified in JIS P8121: 1995 based on pulp that has been disintegrated as specified in JIS P8220: 1998, is 400 to 700 ml. 8. Clupak paper according to claim 1 , whose basis weight ranges from 70 to 85 g/m 2 .
Assignees
Inventors
Classifications
- D21H27/00Primary
Special paper not otherwise provided for, e.g. made by multi-step processes · CPC title
of the twin-wire type · CPC title
Packing paper (packaging materials of special type or form B65D65/38) · CPC title
Kraft or sulfate pulp · CPC title
Mechanical treatment (D21H25/08, D21H25/18 take precedence) · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9945077B2 cover?
- Clupak paper is manufactured using a gap-former paper-making machine equipped with a Clupak system, in such a way that its longitudinal tensile energy absorption index and lateral tensile energy absorption index as specified in JIS P8113 become 2.5 J/g or more and 1.0 J/g or more, respectively. The paper has excellent strength characteristics in both the longitudinal and lateral directions, esp…
- Who is the assignee on this patent?
- Jujo Paper Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification D21H27/00. Mapped technology areas include Textiles & Paper.
- When was this patent published?
- Publication date Tue Apr 17 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).