JPS56131658A - Improvement in dispersion of loading material - Google Patents

Improvement in dispersion of loading material

Info

Publication number
JPS56131658A
JPS56131658A JP3470080A JP3470080A JPS56131658A JP S56131658 A JPS56131658 A JP S56131658A JP 3470080 A JP3470080 A JP 3470080A JP 3470080 A JP3470080 A JP 3470080A JP S56131658 A JPS56131658 A JP S56131658A
Authority
JP
Japan
Prior art keywords
dispersion
formaldehyde
loading material
paper
urea
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP3470080A
Other languages
Japanese (ja)
Other versions
JPS6017387B2 (en
Inventor
Naoyuki Ifuku
Kozo Sasa
Kenzo Kiyota
Kaoru Usami
Takashi Kayama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsui Toatsu Chemicals Inc
Original Assignee
Mitsui Toatsu Chemicals Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsui Toatsu Chemicals Inc filed Critical Mitsui Toatsu Chemicals Inc
Priority to JP3470080A priority Critical patent/JPS6017387B2/en
Publication of JPS56131658A publication Critical patent/JPS56131658A/en
Publication of JPS6017387B2 publication Critical patent/JPS6017387B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To remove formaldehyde and to increase retentin of a loading material in paper, by the addition of a specified amt. of ammonia (salt) to a dispersion of crosslinked urea-formaldehyde polymer particles, a loading material for paper, followed by the adjustment of pH.
CONSTITUTION: A dispersion of crosslinked urea-formaldehyde polymer particles obtd. from an aqueous soln. of formaldehyde, urea, a carboxylmethylcellulose, etc. is mixed with 0.5W4 equivalents, per mol of the dissolved free formaldehyde, of ammonia or an ammonium salt (e.g., ammonium chloride, mitrate or acetate), and agitated at about 0W90°C for 5W120min. Then a dispersion upeful as a loading material for paper is obtd. by the adjustment of pH to 4W10 with an aqueous solution of caustic soda or sulfuric acid.
COPYRIGHT: (C)1981,JPO&Japio
JP3470080A 1980-03-21 1980-03-21 Method for improving filler dispersion Expired JPS6017387B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3470080A JPS6017387B2 (en) 1980-03-21 1980-03-21 Method for improving filler dispersion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3470080A JPS6017387B2 (en) 1980-03-21 1980-03-21 Method for improving filler dispersion

Publications (2)

Publication Number Publication Date
JPS56131658A true JPS56131658A (en) 1981-10-15
JPS6017387B2 JPS6017387B2 (en) 1985-05-02

Family

ID=12421636

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3470080A Expired JPS6017387B2 (en) 1980-03-21 1980-03-21 Method for improving filler dispersion

Country Status (1)

Country Link
JP (1) JPS6017387B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6136312A (en) * 1984-07-27 1986-02-21 Nippon Kasei Kk Production of urea formaldehyde resin
JPS6136311A (en) * 1984-07-27 1986-02-21 Nippon Kasei Kk Production of urea formaldehyde resin
JPS6180119A (en) * 1984-09-27 1986-04-23 Matsushita Electric Ind Co Ltd Projecting optical device
JPS61127720A (en) * 1984-11-28 1986-06-16 Mitsui Toatsu Chem Inc Production of loading material of urea resin
JPS61147213A (en) * 1984-12-20 1986-07-04 Matsushita Electric Ind Co Ltd Compact projection lens
JPS61180214A (en) * 1985-02-06 1986-08-12 Matsushita Electric Ind Co Ltd Compact projection lens

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6136312A (en) * 1984-07-27 1986-02-21 Nippon Kasei Kk Production of urea formaldehyde resin
JPS6136311A (en) * 1984-07-27 1986-02-21 Nippon Kasei Kk Production of urea formaldehyde resin
JPH0542455B2 (en) * 1984-07-27 1993-06-28 Nippon Kasei Chem
JPH0542454B2 (en) * 1984-07-27 1993-06-28 Nippon Kasei Chem
JPS6180119A (en) * 1984-09-27 1986-04-23 Matsushita Electric Ind Co Ltd Projecting optical device
JPS61127720A (en) * 1984-11-28 1986-06-16 Mitsui Toatsu Chem Inc Production of loading material of urea resin
JPH0466248B2 (en) * 1984-11-28 1992-10-22 Mitsui Toatsu Chemicals
JPS61147213A (en) * 1984-12-20 1986-07-04 Matsushita Electric Ind Co Ltd Compact projection lens
JPS61180214A (en) * 1985-02-06 1986-08-12 Matsushita Electric Ind Co Ltd Compact projection lens

Also Published As

Publication number Publication date
JPS6017387B2 (en) 1985-05-02

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